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COMPONENT-BASED REFINING ACCELERATINGTHE TRANSITION OF OIL REFINING TO CHEMICALS PRODUCTION PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (6): 1-8.   Abstract （364）      PDF       Knowledge map    Save Under continuous superposition ofmultiple development pressures, the transformationand upgradingof traditional refining industry is imminent. In order to make full use of the value from different molecular and component in crude oil and produce high value products economically and efficiently, the research of component-based refining has become an important direction to helpthe petrochemical industryto upgrade rapidly and move towards molecular refining. By comparing with traditional refining (fraction-based), the important relationship between specific components of crude oil and the target products,the implementation steps and key supporting technologies of the component-based refining were analyzed, and theeffects on increasing utilization ratio of crude oil resources and added value of products, reducing production cost and carbon dioxide emission and developing new materials were studied. In different component-based refining cases, the yield of ethylene and the benefit per ton of crude oil could be increased by 12.7% and 160.12 Yuan/t, respectively,and thecarbon dioxide emission reductionwas about 19.83 kg per ton crude oil. This study provides an important reference for the development and application of separation technology and key refining technology in the future. Reference | Related Articles | Metrics | Comments（0）

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HYDROGENATION OF 5-HYDROXYMETHYLFURFURAL TO 2,5-BIS(HYDROXYMETHYL)FURAN ON Au/Al2O3 CATALYST PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (11): 1-10.   Abstract （259）      PDF       Knowledge map    Save In order to explore the high efficiency catalyst for the hydrogenation of biomass aldehyde, the Au/Al2O3 catalyst was prepared by precipitation and deposition method with noble metal Au as the active component. The morphology of the catalyst was characterized by X-ray powder diffractometer, transmission electron microscopy, X-ray photoelectron spectroscopy, static low temperature nitrogen adsorption capacity method and NH3 programmed temperature desorption. The Au/Al2O3 catalyst was applied to the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF). The effects of precipitator type, Au loading capacity, reaction temperature, reaction pressure and reaction time on the catalytic performance were investigated, and the cyclic stability of the catalyst was analyzed. The results showed that the active metal Au had a high catalytic activity for the reaction, and the type of precipitator had a significant effect on the particle size and loading rate of Au particles, leading to a certain difference in activity. When the precipitant was a mixture of NaOH and Na2CO3 (mass ratio of 1:1), the Au loading capacity was 2.0%, the reaction temperature was 100 ℃, the H2 pressure was 3.0 MPa, and the reaction time was 4 h, 0.30 g catalyst could catalyze 2.4 mmol HMF to BHMF. The mass conversion of HMF was 92.1% and the mass selectivity of BHMF was 92.0%. Reference | Related Articles | Metrics | Comments（0）

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DEVELOPMENT AND APPLICATION OF IMPURITY DETECTION TECHNOLOGIES OF HYDROGEN FOR PROTON EXCHANGE MEMBRANE FUEL CELLS PETROLEUM PROCESSING AND PETROCHEMICALS    2025, 56 (1): 1-10.   Abstract （249）      PDF       Knowledge map    Save Hydrogen energy, which is clean and sustainable, is becoming an important part of the future energy systems around the world. Hydrogen energy is also an important technological pathway for achieving global decarbonizaton. Proton exchange membrane fuel cell (PEMFC) is one of the most important technical ways for hydrogen energy utilization. Ensuring hydrogen quality is a key factor in the long-term efficient and safe operation of PEMFC. The key to hydrogen quality is the control of impurities in hydrogen. The paper summarizes the requirements of PEMFC for hydrogen quality, introduces the overview of hydrogen detection technology and standards used in PEMFC at home and abroad, and the research progress of SINOPEC Research Institute of Petroleum Processing Co. Ltd.(RIPP) in PEMFC hydrogen impurity detection technology. The pre-concentration coupled GC/SCD/MS scheme developed by RIPP enables simultaneous determination of sulfur-containing compounds, formaldehyde, and organic chlorides in hydrogen gas through a single injection. The detection limits for H2S, formaldehyde, and CH3Cl are 0.01 nmol/mol, 0.1 nmol/mol, and 0.5 nmol/mol, respectively. The proposed GC/TCD/FID scheme can quickly determine He, Ar, N2 and hydrocarbon compounds in hydrogen. The proposed GC-PDHID method for CO2 and CO in hydrogen contains a multi-valves multi-columns system to effectively solve the problem of background interference, with a low detection limit of 50 nmol/mol. Determination of trace ammonia in hydrogen for PEMFC by cavity ring-down spectroscopy was proposed which detection limit was 1.8 nmol/mol. Based on research analytical methods, a series of group and national standards for impurities detection in PEMFC hydrogen had been developed. The methods had been used in impurities tracing source in different hydrogen production processes. A hydrogen energy testing laboratory was established which had been applied in hydrogen quality monitoring for the 2022 Beijing Winter Olympics. Related Articles | Metrics | Comments（0）

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RESEARCH ON OPTIMIZATION OF VACUUM RESIDUE PROCESSING ROUTE IN LARGE INTEGRATED REFINING AND CHEMICAL ENTERPRISES PETROLEUM PROCESSING AND PETROCHEMICALS    2025, 56 (3): 56-60.   Abstract （239）      PDF       Knowledge map    Save The choice of processing route for vacuum residue affects the overall economy of refining enterprises. Usually, delayed coking, solvent deasphalting, fixed bed residue hydrotreating, ebullated bed hydrogenation and other single processing routes or their combination processing routes are adopted. A large-scale refining and petrochemical integration enterprise has repeatedly studied and compared the processing route of residue during the configuration design stage of its 2nd phase 20.0 Mt/a crude oil processing complex and determined to adopt the slurry bed hydrocracking route. The second phase of the project was successfully put into operation with high load. The advanced and reliable nature of slurry bed hydrocracking technology for processing deep cut vacuum residue has been verified by such industry application, reflecting the major progress of residue processing technology. By using the high adaptability of slurry bed residue hydrocracking to poor quality heavy inferior feedstock, it is proposed to further optimize the existing residue processing route with the combination of solvent deasphalting, fixed bed residue hydrotreating and slurry bed hydrocracking, which can achieve better economic benefits. Reference | Related Articles | Metrics | Comments（0）

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RESEARCH PROGRESS ON PYROLYSIS TREATMENT OF WIND TURBINE WASTE BLADES AND UTILIZATION OF PYROLYSIS PRODUCTS PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (12): 155-162.   Abstract （211）      PDF       Knowledge map    Save The environmental pollution and resource wastage caused by the waste blades of wind turbines are becoming increasingly severe. How to make use of the waste blades efficiently is a critical bottleneck and a major challenge in the development of the wind power industry. The technology of pyrolysis recovery is relatively mature, and it is the primary method for the resource utilization of waste blades. Based on the material composition of waste blades, the pyrolysis mechanism of waste blades and the resource utilization of pyrolysis products such as pyrolysis oil, glass fibers and carbon fibers were reviewed, and some suggestions were put forward to solve the problems in the utilization of pyrolysis products. Reference | Related Articles | Metrics | Comments（0）

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ANALYSIS OF ENERGY CONSUMPTION AND ECONOMY OF HYDROGEN PRODUCTION FROM METHANOL STEAM REFORMING PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (9): 136-143.   Abstract （194）      PDF       Knowledge map    Save Based on the processing parameters of industrial hydrogen production from methanol, a process model of hydrogen production from methanol steam reforming was established by using Aspen Plus software. The reaction thermodynamics of methanol steam reforming was discussed, and the effects of various parameters on energy consumption, material consumption, hydrogen cost, and CO2 emission intensity in the hydrogen production process were analyzed. The results showed that the conversion of methanol increased with the increase of reaction temperature, but the CO selectivity increased and the hydrogen yield decreased. Under the optimum conditions of a temperature of 240 ℃,a pressure of 1.5 MPa, a molar ratio of water to alcohol of 1.8, and a PSA unit H2 yield of 90%, the methanol consumption, comprehensive energy consumption, CO2 emission intensity and hydrogen cost of the process were 5.96 kg/kg, 1 185.98 kgOE/t(1kgEO=41.8MJ), 10.45 kg/kg and 17.46 Yuan/kg, respectively. Higher reaction pressure and PSA unit H2 yield, lower molar ratio of water to alcohol and reaction temperature were beneficial to energy saving and CO2 emission reduction in the process of methanol hydrogen production. The order of influence on hydrogen production by steam reforming of methanol decreases as follows: H2 yield of PSA unit > molar ratio of water to alcohol > the reaction pressure > the reaction temperature. Reference | Related Articles | Metrics | Comments（0）

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SYNTHESIS OF AMINO ACID FUNCTIONALIZED ANTHRAQUINONE AND ITS PERFORMANCE IN FLOW BATTERY PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (12): 1-7.   Abstract （190）      PDF       Knowledge map    Save Two anthraquinone derivatives with amino acid functional groups were synthesized by two methods: the amide condensation reaction of carboxyl anthraquinone with amino acids by amide bond or urea bond, and the coupling reaction of halogenated anthraquinone with amine, that is, (4,5-dihydroxy-9,10-anthraquinone-2-carbonyl)-glutamic acid (GAAQ) and N, N'-(9,10-anthraquinone- 2,6-dicarboxylic)-di-glycine (GLAQ). The electrochemical properties and single cell cycling performance of two anthraquinone derivatives, GAAQ and GLAQ, and the cycling performance of GLAQ were investigated. Among them, GLAQ was an alkaline flow battery composed of the negative electrode electrolyte active substance and potassium ferrocyanide. Using Nafion as the ion exchange membrane, charge and discharge cycling experiments were conducted at a current density of 200 mA/cm2. The results showed when the open circuit voltage was greater than 1 V, the Coulombic efficiency was 92%, the voltage efficiency was higher than 85%, and the energy efficiency was higher than 80%. There was no significant capacity decrease in 200 cycles, which indicated that GLAQ had good application prospects for active substances in flow battery. Reference | Related Articles | Metrics | Comments（0）

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ADVANCES IN HYDROPHOBIC CATALYSTS FOR FISCHER-TROPSCH SYNTHESIS PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (11): 155-161.   Abstract （189）      PDF       Knowledge map    Save Fischer-Tropsch synthesis (FTS) technology can convert coal and biomass-based syngas into high-value fuels and chemicals, which is important for achieving efficient use of carbon resources. However, water generated during the reaction process leads to side reactions such as water gas shift (WGS), which will affect the catalyst activity, stability and target product selectivity. By increasing the hydrophobicity of the catalyst, the removal rate of water can be significantly accelerated, the negative impact of water can be reduced, and the performance of FTS reaction can be improved. Focusing on the specific effects of by-product water on FTS reaction, the types of hydrophobic Fischer-Tropsch catalysts, preparation methods and principles of action were outlined, and the prospects for their development were prospected. Reference | Related Articles | Metrics | Comments（0）

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ADVANCES IN LOW-CARBON ALKANE/ALKENE ADSORPTIVE SEPARATION TECHNOLOGY PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (10): 171-178.   Abstract （181）            Knowledge map    Save Ethylene and propylene are important basic chemical raw materials. In production process, the alkanes with the same carbon number as ethylene and propylene usually need to be removed. Their physical and chemical properties are similar, and the separation is difficult. At present, the main method is cryogenic separation with high energy consumption. In contrast, the adsorptive separation method using zeolites, MOFs and other adsorbent materials has the characteristics of low cost and low energy consumption. It is expected to become an alternative separation technology with low energy consumption. In this paper, the research progress of adsorptive separation methods for low-carbon alkanes and olefins at domestic and overseas in recent years was reviewed from the three aspects of adsorption mechanism, adsorbent materials,and desorption technology.The limitations and challenges of novel zeolites, MOFs adsorbent materials and their desorption technologies in the future were put forward, and the optimization direction was prospected. Reference | Related Articles | Metrics | Comments（0）

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DEVELOPMENT AND APPLICATION OF HBC SERIES CATALYST AND ADDITIVE FOR BOOSTING BUTENES IN FCC UNIT PETROLEUM PROCESSING AND PETROCHEMICALS    2025, 56 (2): 1-7.   Abstract （181）      PDF       Knowledge map    Save HBC series catalyst and additive for boosting butenes in FCC unit have been developed by SINOPEC Research Institute of Petroleum Processing Co., Ltd., enhancing the isomerization of carbocation ions and inhibiting the hydrogen transfer reaction in the catalytic cracking process to promote the directional conversion of hydrocarbon molecules to butenes, with the new catalytic materials and optimized preparation techniques. In the commercial application, HBC-A catalyst shows the abilities of both increasing butenes and enhancing bottom cracking, the butene yield increased by more than 0.5 percentage point, while the yield of light cycle oil (LCO) and slurry decreased. HBC-B additive can be flexibly mixed with the main catalyst according to a proper proportion, showing excellent butene selectivity and certain LCO conversion ability. When HBC-B accounts for 5.0% of the catalyst inventory in the system, the butenes yield increased by 0.5~1.0 percentage point, the LCO yield decreased, and the gasoline yield changed little or increase slightly. Reference | Related Articles | Metrics | Comments（0）

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DEVELOPMENT AND COMMERCIAL APPLICATION OF TAILORED START-UP CATALYST FOR RESID TO CHEMICALS UNIT PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (9): 1-7.   Abstract （180）      PDF       Knowledge map    Save Based on the process characteristics and product distribution of resid to chemicals (RTC) unit, while considering the demands for the fluidization performance and physicochemical properties of the start-up catalyst, a scientific blend of selected equilibrium catalyst component, customized fresh component, and inert auxiliary was developed to create the tailored start-up catalyst TSC-R1. Compared to traditional start-up catalyst, the tailored start-up catalyst has excellent physical properties, higher propylene factor and lower coke selectivity, and can quickly match the start-up requirements of the target plant, enhancing the economic benefits of the RTC unit. The industrial application of TSC-R1 in SINOPEC Anqing Petrochemical Company 3.00 Mt/a RTC unit showed that the adjustment time of the unit was greatly shortened, and the time for the unit to achieve stable operation was only 7 d. The quick and stable reaction activity of the catalyst is helpful for the product distribution of the unit to reach the design condition and ensures economic benefits. Related Articles | Metrics | Comments（0）

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STUDY AND APPLICATION OF FLEXIBLE FLUID CATALYTIC CRACKING PROCESS TO MEET MARKET FLUCTUATION PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (7): 1-7.   Abstract （179）      PDF       Knowledge map    Save With the transformation of energy structure, the demand and price of refined oil and chemical products in market fluctuate sinusoidally. The existing refining transformation technology is irreversible and the production plan cannot be flexibly adjusted to meet market demand. Controlling single-molecule and bimolecular reaction path at micro scale was an effective method to solve the problem of inflexibility in the transition from refining to chemical industry in FCC process. It was proposed that the bimolecular reaction index could be used as a proportional measure of the occurrence of single-molecule and bimolecular reaction. The reaction temperature and the type of molecular sieve catalyst were two significant variables affecting the yields of liquefied gas and gasoline. The results showed that the yields of gasoline and (propylene + butene) over Y zeolite catalyst at 530 ℃ were 47.55% and 13.31%, respectively, and the yields of gasoline and (propylene + butene) over MFI zeolite catalyst at 580 ℃ were 22.05% and 31.45%, respectively. The relationship between reaction temperature and catalyst type ratio and the yield of target products was obtained, and the idea of flexible switching and adjustment of industrial plant production scheme was proposed to form a flexible and efficient catalytic cracking process. The industrial application results showed that the production scheme switching of (propylene + butene) and gasoline could be completed within a few weeks. Flexible production scheme provides technical ideas for low-cost progressive transformation and development. Reference | Related Articles | Metrics | Comments（0）

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DEVELOPMENT OF SECOND-GENERATION HYDROUPGRADING CATALYSTS RIC-33 AND RIC-31 FOR STRAIGHT-RUN DIESEL PETROLEUM PROCESSING AND PETROCHEMICALS    2025, 56 (3): 1-7.   Abstract （178）      PDF       Knowledge map    Save To meet the demand for high-quality ethylene raw in the ethylene market, SINOPEC Research Institute of Petroleum Processing Co. Ltd. has developed second-generation MHUG-E dedicated hydro-upgrading catalysts RIC-33 and RIC-31. Compared with the previous generation catalyst RHC-131, RIC-33 and RIC-31 catalysts are more suitable for processing straight-run diesel, and the unconverted diesel obtained from the reaction has a higher content of paraffin. Both unconverted diesel and light naphtha fractions can be used as high-quality ethylene raw. The experimental results of raw material adaptability, catalyst stability, and regenerability show that RIC-33 and RIC-31, have good adaptability to raw materials, high catalyst activity, and stability. The regenerated catalysts have similar activity and paraffin-selectivity comparable to the new catalysts. Reference | Related Articles | Metrics | Comments（0）

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STUDY ON MICROMIXING IN MICROCHANNEL REACTOR PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (12): 8-12.   Abstract （177）      PDF       Knowledge map    Save Microchannel reactors are widely used in rapid, strongly exothermic, strongly corrosive and other hazardous reaction processes due to their good mass and heat transfer performances, high safety and mobility. To study the reasons for the enhancement effect of microchannel reactors on the micromixing performance, the influence of Ehrfeld Miprowa microreactor and its internals on micromixing was investigated. The segregation index XS in the Ehrfeld Miprowa microchannel reactor was experimentally determined by using the Villermaux/Dushman parallel competitive reaction system. The influences of the fluid inlet flow rate, concentration of H+ and the internal components on XS were analyzed. The experimental results showed that the higher the flow rate was, the better the micromixing performance was. Also the internal components could effectively enhance the micromixing performance of the microchannel reactor. Related Articles | Metrics | Comments（0）

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RESEARCH PROGRESS IN ACTIVE PHASE STRUCTURE CONTROL OF RESIDUE HYDRODESULFURIZATION CATALYST PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (12): 147-154.   Abstract （175）      PDF       Knowledge map    Save The combination technology of fixed-bed residue hydrogenation-catalytic cracking (deep catalytic cracking) is an important technology for refineries to realize low-cost chemical transformation. Improving the activity and stability of residue hydrodesulfurization catalyst can not only effectively improve the chemicals yield of the downstream catalytic cracking unit, but also help to prolong the operation cycle of the residue hydrodesulfurization unit, and then make the operation and maintenance cycle more matching for the two sets of units. It is always a difficult problem to design the active phase structure with both activity and stability of residue hydrodesulfurization catalysts. Starting with the catalyst preparation process, the effect of the important steps in the preparation process on the structure of active phase was systematically introduced, the regulation mechanism of the active phase structure was summarized, and the method of accurate design of active phase structure of the catalyst with both active and stability from atomic level was pointed out. Related Articles | Metrics | Comments（0）

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SYNTHESIS OF ZSM-5 MOLECULAR SIEVE BY CRYSTAL SEED AND ORGANIC TEMPLATING AGENT RELAY-DIRECTED AND ITS CATALYTIC PERFORMANCE PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (7): 62-68.   Abstract （175）      PDF       Knowledge map    Save ZSM-5 zeolite was synthesized by the relay-oriented method of crystal seed and organic template agent, and the obtained ZSM-5 zeolite has similar crystalline structure, morphology, bulk Si/Al ratio, and pore structure to those of ZSM-5 zeolite synthesized by traditional methods. The performance of ZSM-5 zeolite synthesized by the relay method and traditional methods was compared on the reaction with 1,3,5-triisopropylbenzene catalytic cracking as probe. The results showed that the conversion of 1,3,5-triisopropylbenzene of ZSM-5 zeolite prepared by the relay method was low, which indicated that the surface of ZSM-5 zeolite prepared by the this method was rich in silicon and poor in aluminum. Furthermore, the zeolites synthesized by both methods were used as isomerization catalysts for ethylbenzene isomerization. Under the same reaction conditions, the ethylbenzene conversion of ZSM-5 zeolite prepared by the relay method was higher, but the isomerization activity and xylene loss rate were lower. It can be seen that crystal seed and organic template agent relaying is a feasible method to prepare core-shell molecular sieve with different aluminum content. Reference | Related Articles | Metrics | Comments（0）

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THE CURRENT STATUS AND SUGGESTIONS FOR THE DEVELOPMENT OF GREEN METHANOL PETROLEUM PROCESSING AND PETROCHEMICALS    2025, 56 (2): 149-155.   Abstract （170）      PDF       Knowledge map    Save Green methanol has been included in China's encouraged industries for new energy. Green methanol as fuel is currently the main energy source for reducing carbon emissions in shipping. It is also an efficient hydrogen carrier, and the use of green electricity to synthesize green methanol for energy storage can solve the probleum of high hydrogen storage and transportation costs. The technical route and development status of green methanol are summarized, based on which, the development opportunities and challenges of green methanol are analyzed, and suggestions for the development of green methanol in China are given. The production cost of electric methanol mainly depends on the electricity price, while the process route of coupling “bio methanol” with “electric methanol” production may become an effective strategy to reduce the production cost. In China, the development of green methanol should integrate resource advantages and focus on location advantages. At the current stage, the focus can be on developing "low-carbon methanol" derived from carbon dioxide captured from flue gas; in subsequent stages, the possibility of utilizing carbon dioxide from biological sources should be gradually considered. Green methanol can be supplied to international shipping vessels for refueling, gradually replace exported marine fuel, so as to capture market share in green marine fuel. Reference | Related Articles | Metrics | Comments（0）

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NORMAL HEPTANE ISOMERIZATION CATALYZED BY IONIC LIQUID [Et3NH]Cl-AlCl3 PROMOTION BY CIRCULATION OF ISOBUTANE PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (6): 9-17.   Abstract （163）      PDF       Knowledge map    Save Light hydrocarbonisomerization usually takes C5 and C6 hydrocarbons as feedstocks, and C7+ hydrocarbons in the process of isomerization are prone to a relatively severe cracking reaction, resulting in low yield of isomerized oil. As a novellow-temperature catalyst, ionic liquid has also poor adaptability to macromolecular hydrocarbon feedstocks.Therefore, in the process of macromolecular hydrocarbon isomerization, inhibiting side reaction and improving the yield of isomerized oil during the isomerization of larger hydrocarbons have been the difficulty and focus of research. Based on the mechanism of the alkane isomerization catalyzed by ionic liquid, isobutane criculation can inhibit side reaction and promote the isomerization reaction, which served to reduce the content of C4 alkanes in the isomerization product and increase the yield of isomerized oil. The influence of process conditions such as the addition amount of isobutane, reaction temperature, reaction time, stirring rate and acid-to-alkane ratio on the n-heptane isomerization catalyzed by chloroaluminate ionic liquid was systematically studied. The results showed that the circulation of isobutane significantly decreased the yield of the by-product C4 components. The reason was that the substantial presence of isobutane in the system could significantly accelerate the rate of hydrogen transfer during the reaction, effectively inhibit the secondary reactions such as cracking and disproportionation. Under the conditions of an isobutane dosage of 30%, a reaction temperature of 50℃,a reaction time of 1 h,a stirring speed of 1500 r/min and an acid-to-alkane ratio of 1, the n-heptane conversion reached 91.0%, with isomeric hydrocarbon selectivity and liquid yield of 87.2% and 93.5%, respectively. Compared to those of the reaction system without isobutane, the isomeric hydrocarbon selectivity and liquid yield of the reaction system with isobutane at similar conversion rate of n-heptane increased by 16.0 percentage points and 14.8 percentage points, respectively. Reference | Related Articles | Metrics | Comments（0）

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COMMEICIAL APPLICATION OF CRUDE CRACKING PYROLYSIS PROCESS PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (12): 59-65.   Abstract （154）      PDF       Knowledge map    Save Improving energy efficiency and reducing CO2  emission are the keys to promote the high-quality development of petrochemical industry. Crude-to-chemical has been highly valued in the transformation of refining and chemical structure, which has promoted revolutionary. Crude cracking pyrolysis process (CCPP) is a crude-to-chemical technology. Based on the difference of catalytic cracking reaction characteristics between light and heavy fractions in crude oil, a multi-zone coupling reaction process and a specialized catalyst for CCPP were developed, and the crude oil pretreatment column and maximum catalytic propylene (MCP) unit were reformed. Industrial trial of CCPP technology was carried out in Yangzhou Petrochemical Company. The results showed that the chemical yield of crude oil from Jiangsu oilfield processed by CCPP technology was as high as 50.99%, the production cost of ethylene/propylene could be reduced by 46.4%, and the CO2 emission could be reduced by 30.7%. Reference | Related Articles | Metrics | Comments（0）

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METALLOCENE CATALYSTS AND THEIR SUPPORTS FOR OLEFIN POLYMERIZATION PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (9): 177-186.   Abstract （149）      PDF       Knowledge map    Save Metallocene catalysts have attracted attention from both academic and business communities due to the single center catalytic performance in the polymerization of α-olefins, dienes and styrene. In order to further improve the activity and utilization efficiency of catalysts, prevent the occurrence of kettle sticking phenomenon and effectively control the microstructure of catalytic products, metallocene catalysts are usually loaded on the carrier for use. The basic structure and development history of metallocene catalysts were introduced, and the kinds of supports for metallocene catalysts were summarized, including MgCl2, molecular sieves or porous materials, layered materials, polymers, carbon nanotubes and graphite, and silica gel, and self-loading characteristics and properties were summarized. It was pointed out that it was still an important work to search for highly active catalysts and their efficient loading processes in this field in the future. Reference | Related Articles | Metrics | Comments（0）