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ANALYSIS ON THE DEVELOPMENT PATHWAYS OF LOW-CARBON OIL REFINING INDUSTRY IN CHINA PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (1): 1-9.   Abstract （816）      PDF       Knowledge map    Save Carbon peaking and carbon neutrality goalsare challenges facing the petroleum processing industry and important opportunities for the industry to achieve high-quality development.The low-carbon development of petroleum processingindustry needs to coordinate the relationship between the whole and the part, development and emission reduction, short-term and long-term, and choose different emission reduction paths according to specific emission reduction scenarios.The technologies including energy efficient utilization, resource efficient utilization, resource recycling, renewable resource utilization, low-carbon refining process, green hydrogen refining, CO2 chemical utilizationandintelligent technology can provide low-carbon development support at different stages of industry development, and help the refining industry to achieve the carbon peaking and carbon neutrality targets as soon as possible. Related Articles | Metrics | Comments（0）

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PROGRESS IN PROCESSING TECHNOLOGY OF PYROLYSIS OIL FROM WASTE PLASTIC PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (9): 1-7.   Abstract （673）      PDF       Knowledge map    Save The increase amount of waste plastic products brings about increasingly serious environmental pollution problems. Using pyrolysis technology to treat waste plastics can not only reduce environmental pollution, but also is an important way to realize chemical recovery of waste plastics. The source of waste plastics is extensive, which leads to many impurities in waste plastic pyrolysis oil, and limits the direct utilization of waste plastics pyrolysis oil. Therefore, it is necessary to adopt the post-treatment process of pyrolysis oil of waste plastics to promote the high-value utilization of waste plastics. In addition, it is very important to analyze the composition of waste plastic pyrolysis oil, which is helpful to adopt the targeted processing technolgy. In this paper, the research progress of the composition analysis of waste plastics pyrolysis oil in recent years was reviewed, processing technology of waste plastic pyrolysis oil, such as dechlorination and hydrofining, was introduced, and the prospect of processing technology of waste plastic pyrolysis oil was put forward. Related Articles | Metrics | Comments（0）

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FLEXIBILITY OF DCC TECHNOLOGY AND ITS COMMERCIAL APPLICATION IN CHEMICAL-TYPE REFINERY PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (7): 1-5.   Abstract （646）      PDF       Knowledge map    Save The characteristics of deep catalytic cracking (DCC) and enhanced deep catalytic cracking (DCC-plus) technology and their relationships were reviewed. DCC-plus technology has higher propylene yield than DCC technology, and the yield of dry gas and coke is significantly reduced. For a set of 2.2 Mt/a DCC-plus unit for processing 50% atmospheric residue mixed with 50% hydrocracking tail oil as feedstock, the yields of ethylene and propylene yields were 5.6% and 21.5%, respectively. A set of 1.2 Mt/a DCC-plus unit has switched between two operation modes of fuel oil program and olefins program. Compared with the fuel oil mode, the propylene yield was increased by 125.8%, and the DCC naphtha and light cycle oil (LCO) yields were reduced by 37.4% and 20.0%,respectively,under the olefins production mode. DCC technology is mature and reliable, and the large-scale and long-term operation of DCC unit has been verified in industry. For chemical refineries with the DCC units as the core, the oil product ratio (the total output of gasoline, diesel and aviation fuels as a proportion of crude oil processing) can be as low as 16.0%, and the rate of chemicals (the total production of propylene, aromatics and ethylene as a proportion of crude oil processing) is as high as 67.3%, which is a competitive technical choice for building a new generation of full chemical-type refinery. Reference | Related Articles | Metrics | Comments（0）

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PROGRESS AND COST ANALYSIS OF DISTRIBUTED HYDROGEN PRODUCTION TECHNOLOGY PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (11): 11-16.   Abstract （608）      PDF       Knowledge map    Save At present, hydrogen for transportation energy in China is mainly transported by 20 MPa long tube trailers, which has low transportation efficiency and high cost, so the large-scale application of hydrogen energy is limited to a certain extent. Distributed hydrogen production has attracted more and more attention due to the lack of long-distance transportation troubles of hydrogen. In this paper, the technical progress of hydrogen production from distributed methanol, natural gas, alkaline electrolytic water, PEM electrolytic water and ammonia decomposition were introduced, and the cost of hydrogen production was analyzed. The technology of hydrogen production from distributed methanol and natural gas reforming hydrogen production technologies was mature, and the price of raw materials had a great influence on the cost of hydrogen production. For distributed water electrolysis hydrogen production, both methods of hydrogen production have achieved commercial application. The price of electricity was an important factor affecting the cost of hydrogen production. In addition, the initial investment of PEM water electrolysis hydrogen production equipment was relatively high, which further increased the cost of hydrogen production. For hydrogen production by distributed ammonia decomposition, there is room for further improvement of commercial technology. At the current stage, the economic competitiveness of ammonia decomposition hydrogen production is lower than that of methanol reforming hydrogen production, but it has certain application potential under the background of carbon neutrality. Reference | Related Articles | Metrics | Comments（0）

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SRJET TECHNOLOGY FOR HYDROGENATION OF WASTE OILS AND FATS TO PRODUCE BIO-JET FUEL AND ITS COMMERCIAL APPLICATION PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (12): 1-5.   Abstract （552）      PDF       Knowledge map    Save In order to meet the demand for bio-jet fuel in China's aviation market, SINOPEC Zhenhai Refining & Chemical Company has built a 100 kt/a bio-jet fuel production plant using waste cooking oil as feed, adopting the SRJET technology developed by SINOPEC Research Institute of Petroleum Processing Co., Ltd.. The first operation of the device was successful, and the product met the requirements of No.3 jet fuel standard. The bio-jet fuel products successfully obtained the sustainable certification certificate issued by RSB and the bioaviation coal airworthiness certificate approved by the Civil Aviation Administration of China, and successfully realized commercial flight. Related Articles | Metrics | Comments（0）

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HYDROTREATING TECHNICAL SCHEME OF CATALYTIC CRACKING LCO FOR COMPREHENSIVE UTILIZATION PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (12): 1-7.   Abstract （551）      PDF       Knowledge map    Save Based on the analysis of hydrocarbon composition and heteroatom distribution in light cycle oil(LCO) from catalytic cracking unit, the different processing technology routes were proposed for different fractions of LCO. The analysis results show that aniline and indole nitrides in LCO are mainly distributed in the light and middle (<290 ℃)distillation section, while carbazole is mainly concentrated in heavy distillation section (>320 ℃). There is almost no thiophene sulfide in LCO, and the benzothiophene sulfide appears in the LCO fraction with initial boiling point over 290 ℃. Moreover almost all the sulfides in the heavy fraction belong to dibenzothiophene sulfide. The hydrotreating process results show that the full fraction of LCO requires severe conditions to achieve the increase of cetane number by hydrogenation reaction. The aromatics hydrogenation saturation in the middle fraction of LCO (240-320 ℃) under mild conditions could result in the 13.9 increase in cetane number of the product which could serve as the diesel blending components for China VI standard. The light fraction of LCO(<240 ℃) is suitable for catalytic cracking process to produce high-octane gasoline blending components. Reference | Related Articles | Metrics | Comments（0）

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STATUS AND PROSPECT OF SLURRY BED RESIDUE HYDROCRACKING TECHNOLOGY Shao Zhicai PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (11): 17-23.   Abstract （511）      PDF       Knowledge map    Save In recent years, the domestic demand of crude has depended on importing foreign crude at a high level, and the resource of crude needs to be utilized efficiently, slurry bed hydrocracking technology is a good choice to convert heavy oil into high-value transportation fuel and petrochemical products because of its high conversion rate and low quality feedstock. Several slurry bed residue hydrocracking technologies were introduced as follows: HDH plus technology of PDVSA, Uniflex technology of UOP, LC-Slurry technology and VRSH technology of CLG, EST technology of Eni, RMAC technology of RIPP. The technical characteristics of above processes were compared, and the technical difficulties of slurry bed residue hydrocracking were analyzed. It is suggested that the study of slurry bed residue hydrotreating process, engineering and catalyst should be strengthened． Reference | Related Articles | Metrics | Comments（0）

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PREPARATION OF ALUMINA WITH HIGH SPECIFIC SURFACE AREA AND LARGE PORE VOLUME VIA ALCOHOL ADDITION PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (7): 20-25.   Abstract （479）      PDF       Knowledge map    Save Aiming at the difficult problem of preparing high-purity alumina with large specific surface area, large pore volume and large pore size, the effects of organic fatty alcohol on the specific surface area, pore volume and the most probable pore diameter of alumina during the preparation of high-purity alumina by alkoxy aluminum hydrolysis were investigated, and the influence mechanism was explored. The results showed that the addition of fatty alcohol and emulsifier at the same time was beneficial to the dispersion of alcohol in the slurry of aluminum hydroxide precursor, and more large pores could be formed effectively by drying and calcination, so that the specific surface area, pore volume and the most probable pore diameter could increase at the same time. The higher the amount of alcohol or emulsifier, the better the effect of pore enlargement, and the higher the carbon number of fatty alcohol, the better the effect of pore enlargement. As an additive, n-hexanol was better than isopropanol, n-butanol and n-amyl alcohol in pore enlargement. The addition of fatty alcohol did not increase the residual carbon content of alumina products and had no effect on the purity of alumina. Through optimization of process conditions, high-purity alumina with high specific surface area ≥ 270 m2/g, pore volume ≥ 0.80 cm3/g and the most probable pore diameter ≥9 nm could be obtained by this method. Reference | Related Articles | Metrics | Comments（0）

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RESEARCH PROGRESS OF RUTHENIUM-BASED ACIDIC OXYGEN CATALYST EVOLUTION IN WATER ELECTROLYSIS PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (10): 1-10.   Abstract （459）      PDF       Knowledge map    Save The proton exchange membrane electrolysis of water (PEMEW) can be coupled with green electricity generated from renewable energy to efficiently produce high-purity green hydrogen. Among them, the oxygen evolution reaction (OER) at the anode is still the bottleneck that affects the overall water electrolysis efficiency because of its slow kinetic process, high oxidation and corrosion. At present, the anode is extremely dependent on the limited and expensive iridium-based catalysts, which greatly limits the large-scale commercial application of proton exchange membrane (PEM)-based electrolyzers. Ruthenium, as the cheapest platinum group metal, has excellent acidic oxygen evolution activity, but its stability still needs further study, so it is urgent to develop some new ruthenium-based acidic oxygen evolution catalysts. Firstly, the reaction mechanism and stability analysis of acidic OER were reviewed. Then, the research progress in this field was mainly introduced from the aspects of composition/structure-activity-stability. Finally, some important problems in future research were summarized to promote further research on ruthenium-based acidic oxygen evolution catalysts. Related Articles | Metrics | Comments（0）

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MODELING AND FULL PROCESS SIMULATION OF SULFURIC ACID ALKYLATION REACTOR BASED ON CAPE-OPEN STANDARD PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (11): 128-134.   Abstract （452）      PDF       Knowledge map    Save Based on the mechanism model of sulfuric acid alkylation established by Stratco process of the DuPont company, the unit operation module of sulfuric acid alkylation reactor was developed by using C++ and COM technology, which conformed to CAPE-OPEN standard, the model could interact with the general chemical process simulation software through unit operation interface and the thermodynamic physical property interface, and a convenient and friendly user interface was established. The module of sulphuric acid alkylation reactor was embedded in Aspen Plus, and the whole process simulation of the sulfuric acid alkylation process could be realized by means of Aspen Plus's physical property data, thermodynamic method and conventional unit operation module of the simulation software itself. The simulation results are in good agreement with the actual industrial data, which shows that the CAPE-OPEN sulfuric acid alkylation reactor module is stable and reliable, it will plays an important role in the process simulation and parameter optimization of the sulfuric acid alkylation unit. Reference | Related Articles | Metrics | Comments（0）

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INDUSTRIAL TEST OF MFP TECHNOLOGY IN FCC UNIT PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (7): 18-22.   Abstract （448）      PDF       Knowledge map    Save The catalytic cracking and hydrodesulfurization technology for producing more The catalytic cracking and hydrodesulfurization technology for producing more propylene and low sulfur fuel oil components in FCC unit was introduced, including revamping, industrial test and industrial application, so as to flexibly adjust the production plan to meet market demand. The MIP-CGP process was used as blank calibration, and the changes of Marine Fuel and Propylene (MFP) process operating conditions and product distribution were compared when the special catalyst accounted for 50% and 80% of the system storage. The results show that hydrogen distribution is improved, the propylene and isobutene content in LPG is greatly increased, the yield and selection of low-carbon olefins are improved, and dry gas and coke production are kept stable. FCC technology has been changed from high conversion rate to high selectivity, which can realize the efficient utilization of hydrocarbon resources, and can adjust production plan flexibly according to the change of market demand to realize the maximization of economic benefit. Reference | Related Articles | Metrics | Comments（0）

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PROGRESS ON CATALYSTS FOR AMMONIA DECOMPOSITION PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (2): 10-22.   Abstract （430）      PDF       Knowledge map    Save Hydrogen energy,as a clean and environmentally friendly renewable energy source,is attracting worldwide attention.However, the extremely low volume energy density andthe flammable and explosive characteristics of hydrogen bring difficulties and dangersto large-scale storage and transportation of hydrogen. Ammonia is a kind of carbon-free hydrogen carrier,which not only has high volume and mass energy density, but also has mature storage and transportation technology.On-site hydrogen productionfrom ammonia can solve the problems of hydrogen storage and transport, so ammonia hydrogen storage from ammoniais attracting a lot of attention. Currently, the most efficient catalyst for ammonia decomposition is ruthenium-based catalysts, but it can not be used in large scale because of its high price. Among the non-precious metal-based catalysts, Ni-based catalysts have the highest activity and relatively low cost,which are considered to have great application potential. However, Ru-based and Ni-based catalytic systems still havesome challenges in terms of activity and stability. In this paper,the latestresearch progress of ammonia decomposition catalysts, including catalysts based on Ru, catalysts based on non-precious metals Fe and Ni, and bimetallic catalysts, and the reaction mechanism of ammonia decompositionin recent literaturewere reviewed. Related Articles | Metrics | Comments（0）

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STUDY ON TECHNICAL ROUTE OF OIL REFINING TRANSFORMATION AND DEVELOPMENT PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (6): 1-5.   Abstract （429）      PDF       Knowledge map    Save Due to the excess refining capacity and the slowdown of oil consumption, the utilization of crude oil resources has been changed from fuel oil production to oil-chemical integration, so as to enhance the competitiveness. Based on the market environment and the needs of survival and development, a detailed analysis and study on the integrated conversion scheme of oil and chemical was carried out, and an integrated model of decarbonization and full hydrogenation refining and chemical was designed. Through the comparison of investment, product distribution, technical and economic indexes, it can provide reference for the new refinery and the transformation of the existing enterprises. Reference | Related Articles | Metrics | Comments（0）

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DEVELOPMENT AND INDUSTRIAL PRACTICE OF HEAVY OIL CATALYTIC CRACKING PROCESS OVER MESOPOROUS ZEOLITE FOR LOW COKING LOW ENERGY CONSUMPTION AND HIGH OLEFIN YIELD PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (8): 1-10.   Abstract （428）      PDF       Knowledge map    Save Based on the innovations of both catalytic materials and reaction engineering of diameter-transformed fluidized bed reactor, the highly selective catalytic cracking process from heavy hydrocarbon to olefins was proposed, and industrial test was carried out, which was aimed at the improvement of the yield and the selectivity of light olefin products. The industrial results were consistent with those of laboratory results, and the selectivity of olefin products was greatly improved. The successful industrialization proved the feasibility and effectiveness of the diameter-transformed fluidized catalytic cracking technology by using mesoporous zeolites catalyst, which could provide technical support for the smooth transformation from oil refining to chemicals. At the same time, it lays a reliable theoretical foundation and accumulates rich industrial practice for the in-depth development of targeted catalytic cracking. Related Articles | Metrics | Comments（0）

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PROGRESS OF HELIUM PURIFICATION TECHNOLOGY PETROLEUM PROCESSING AND PETROCHEMICALS    2022, 53 (10): 127-134.   Abstract （427）      PDF       Knowledge map    Save As a non-renewable strategic rare gas, helium mainly comes from helium containing natural gas, which is generally purified by cryogenic technology. However, the cost of helium obtained by cryogenic method is high. In order to reduce the extraction cost of helium, the traditional cryogenic technologies such as pressure swing adsorption, membrane separation, absorption method, hydrate method and multi-technology combination methods were analyzed and compared. The results show that the multi-technology combination extraction and separation of helium can effectively break the "bottleneck" of single separation technology, reduce investment and consumption, and has a better application prospect. Reference | Related Articles | Metrics | Comments（0）

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ENERGY CONSUMPTION AND COST ANALYSIS OF HYDROGEN PRODUCTION BY STEAM REFORMING OF NATURAL GAS PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (7): 105-112.   Abstract （413）      PDF       Knowledge map    Save Based on the process parameters of the industrial natural gas hydrogen plant, a process model of natural gas hydrogen production was established by using Aspen Plus process simulation software. The energy consumption, material consumption, H2 cost and carbon emission intensity of hydrogen production process under different process parameters were investigated. The results showed that the cracking reaction of methane was the main cause of carbon deposition in the conversion unit, and high water/carbon (H2O/C) mole ratio was beneficial to inhibit thermodynamic carbon deposition. Besides, low H2O/C mole ratio, low CH4 content in dry gas of conversion unit and high H2 yield of pressure swing adsorption (PSA) unit were beneficial to energy saving and material consumption reduction of H2 production, and to reduction of carbon emission, the order of their influence on hydrogen production unit from high to low was H2O/C mole ratio > H2 yield of PSA unit > CH4 content in dry gas of conversion unit. The change of CO content in dry gas of medium-temperature WGS had no obvious influence on the energy consumption, material consumption, H2 cost, and CO2 emissions intensity of the hydrogen plant. Reference | Related Articles | Metrics | Comments（0）

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REVIEWS ON SYNTHESIS TECHNOLOGIES OF 1,2-PROPANEDIOL PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (12): 143-148.   Abstract （404）      PDF       Knowledge map    Save The synthesis of 1,2-propanediol by hydration of propylene oxide, transesterification, hydrogenolysis of glycerol, and reaction of propylene hydrogen with peroxide were introduced and compared. Propylene catalytic oxidation technology has the characteristics of low cost and easy availability of raw materials, integration of two reactions in one reactor, higher yield of 1,2-propanediol, no need to invest in propylene oxide production capacity, and good technical and economic efficiency, which can realize the cleaner production of 1,2-propanediol, and has a good prospect of industrial application. It was suggested that the development of stable and efficient catalytic oxidation catalyst should be the key research direction of this technology in the future. Reference | Related Articles | Metrics | Comments（0）

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RESEARCH PROGRESS ON PREPARATION AND APPLICATION OF AMORPHOUS SILICA-ALUMINA MATERIALS PETROLEUM PROCESSING AND PETROCHEMICALS    2024, 55 (3): 154-161.   Abstract （379）      PDF       Knowledge map    Save Amorphous silica-alumina (ASA) is a composite material formed by Al2O3 and SiO2 with large pore size, pore volume and suitable acidity, which has been used in crude oil processing. The development of high performance ASA materials is of great significance in improving the catalyst activity and increasing the selectivity of target products. The effects of different preparation methods on the structure and acidity of ASA materials, the causes of the acidity of ASA materials and the influencing factors were analyzed. The applications of ASA materials in hydrocracking, catalytic cracking, and other catalytic reaction processes were investigated to provide guidelines for the preparation of high performance ASA materials. The main directions of future research on ASA materials were proposed in the light of current development trends. Reference | Related Articles | Metrics | Comments（0）

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DEVELOPMENT OF A MODULAR DISTRIBUTED SYSTEM FOR HYDROGEN PRODUCTION FROM METHANOL AND APPLICATION IN THE HYDROGEN REFUELING STATION PETROLEUM PROCESSING AND PETROCHEMICALS    2023, 54 (11): 1-7.   Abstract （368）      PDF       Knowledge map    Save To satisfy the hydrogen demand for hydrogen refueling stations, based on the analysis of the advantages and disadvantages of the existing hydrogen supply system, the catalytic process and chemical process of the distributed hydrogen production system were "re-engineered" to form a new distributed hydrogen production system. The development of a new type of catalyst for hydrogen production from methanol improved the reaction efficiency and reduced the reactor volume. The new catalytic oxidation catalyst has the advantages of high activity at low temperatures and good stability at high temperatures. The micro-channel technology was used to strengthen the heat transfer process in the distributed hydrogen production system, and the miniaturization of the device was realized. The coupling system of methanol reforming and catalytic oxidation made full use of the characteristics of endothermic-exothermic reaction and realized the closed-loop utilization of system energy. The distributed hydrogen production system developed in this paper was first developed in China, and the integrated hydrogen refueling station with the production of hydrogenation was demonstrated. The covered area of the distributed methanol hydrogen production demonstration unit was only 64 m2, and the methanol consumption of 1 kg fuel cell grade hydrogen was 7.37 kg. It provides a replicable and extensible experience for China to construct a safe, stable, and efficient hydrogen supply network, and has a positive significance for reducing the cost of hydrogen and promoting its application on a large scale. Reference | Related Articles | Metrics | Comments（0）

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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）