Y和Beta分子筛对环烷基直馏柴油加氢裂化性能的影响

石油炼制与化工 ›› 2021, Vol. 52 ›› Issue (1): 72-78.

Y和Beta分子筛对环烷基直馏柴油加氢裂化性能的影响

宋国良^1,2,肖寒^1,3,张景成^1,2,张尚强^1,2,张玉婷^1,2,孙彦民^1,2,南军^1,2,于海斌^1,2

1. 中海油天津化工研究设计院有限公司
2. 天津市炼化催化技术工程中心
3.中国石油大学（北京）

收稿日期:2020-05-08 修回日期:2020-09-17 出版日期:2021-01-12 发布日期:2020-12-29
通讯作者: 宋国良 E-mail:458870143@qq.com
基金资助:
环烷基柴油高产芳烃化工原料加氢裂化技术

EFFECT OF Y AND BETA MOLECULAR SIEVES ON HYDROCRACKING OF NAPHTHENIC STRAIGHT-RUN DIESEL FRACTION

Received:2020-05-08 Revised:2020-09-17 Online:2021-01-12 Published:2020-12-29
Supported by:

摘要/Abstract

摘要： 分别以改性Y分子筛、H-Beta分子筛及改性Y/H-Beta复配分子筛为酸性组分制备载体，然后采用等体积浸渍法制备Ni-Mo型加氢裂化催化剂。通过X射线衍射、N₂吸附-脱附、NH₃-程序升温脱附、吡啶吸附红外光谱、H₂-程序升温还原等方法对催化剂进行分析表征，结果表明：与采用改性Y分子筛、H-Beta分子筛制备的催化剂相比，采用改性Y/H-Beta复配分子筛制备的催化剂有较适宜的酸量和酸强度，活性金属分散均匀，催化剂的裂化和加氢功能匹配合理。以环烷基直馏柴油为原料，在较高的反应温度条件下，3种催化剂中改性复配分子筛催化剂明显抑制了二次裂化反应，在较高转化率条件下，其加氢裂化产物总液体收率最高，轻石脑油收率最低，重石脑油收率最高，重石脑油芳烃潜含量和柴油十六烷值均较高。

关键词: 分子筛, 催化剂, 环烷基直馏柴油, 加氢裂化

Abstract: Using the modified Y, H-Beta molecular sieves and Y/H-Beta composite molecular sieves as acid components, respectively,the hydrocracking catalysts were prepared by equal volume impregnation method．The catalysts were characterized by XRD, BET, NH₃-TPD, Py-FTIR and H₂-TPR techniques. The results showed that compared with the catalysts prepared by Y molecular sieves and H-Beta molecular sieves, the catalyst prepared by modified Y/H-Beta compound molecular sieve has suitable acid amount and strength, and the active metals are uniformly dispersed, and the cracking and hydrogenation functions of the catalyst are reasonably matched. When the naphthenic straight-run diesel fraction was used as raw material, the composite catalyst could inhibite the secondary cracking obviously at high reaction temperature; and at higher conversion rate, the total liquid yield was the highest and the light naphtha yield was the lowest, while the yield of heavy naphtha was the highest, the potential aromatic of heavy naphtha and the cetane number of diesel fraction were both higher.

Key words: molecular sieve, catalyst, naphthenic straight-run diesel, hydrocracking

中图分类号:

宋国良肖寒张景成张尚强张玉婷孙彦民南军于海斌. Y和Beta分子筛对环烷基直馏柴油加氢裂化性能的影响[J]. 石油炼制与化工, 2021, 52(1): 72-78.

参考文献

[1]郭春垒, 范景新, 臧甲忠, 等.柴油高值化综合利用技术发展现状及分析[J].化工进展, 2018, 37(11):4205-4213 [2]Robert E Y, William P H, Russell J R.Process for the production of aromatic fuel:US, 4585545[P].1986-04-29. [3]Thakkar V P, Abdo S F, Gembicki V A, et al.LCO upgrading:A novel approach for greater added value and improved returns[C]//Des plaines, Illinois, USA, NPRA Annual Meeting, AM-05-53, 2005. [4]孙斌, 葛海龙, 韩照明.加氢转化技术研发及应用[J].当代化工, 2016, 45(12):2909-2912 [5]刘昶, 黄娆, 郝文月, 等.多产化工原料型加氢裂化催化剂的研制[J].石油炼制与化工, 2019, 50(2):68-72 [6]范思强, 王仲义, 崔哲, 等.加氢裂化工艺条件对直馏柴油高附加值的影响[J].石油化工, 2019, 48(12):1265-1269 [7]陈光, 吴子明, 李扬, 孙洪江, 等.不同加氢改质催化剂对环烷基柴油改质的研究[J].现代化工, 2019, 39(06):140-143 [8]方向晨, 关明华, 廖士纲.加氢裂化[M].北京：中国石化出版社, 2012:221-223. [9]南军, 肖寒, 张景成, 等.分子筛调变氧化铝载体对-催化剂加氢脱氮活性的影响[J].石油炼制与化工, 2019, 50(01):13-19 [10]刘永存, 肖寒, 张景成, 等.分子筛类型对四氢萘加氢裂化反应性能的影响[J].石油炼制与化工, 2017, 48(11):28-34 [11]袁晓亮, 王书芹, 鲁旭, 等.分子筛加氢裂化催化剂的研制与性能评价[J].石化技术与应用, 2016, 34(01):20-23 [12]王东青, 于秀娟, 于春梅, 等.中油型加氢裂化催化剂的研制及其性能评价[J].工业催化, 2014, 22(02):132-136 [13]Yu Fan, Han Xiao, Gang Shi, et al.Citric acid-assisted hydrothermal method for preparing NiW/USY–Al2O3 ultradeep hydrodesulfurization catalysts[J]. Journal of Catalysis, 2011, 279(1). [14]杜艳泽, 乔楠森, 王凤来, 等.分子筛在加氢裂化反应中催化性能特点研究[J].石油炼制与化工, 2011, 42(08):22-26 [15]Yu Fan, Han Xiao, Gang Shi, et al.Alkylphosphonic acid-and small amine-templated synthesis of hierarchical silicoaluminophosphate molecular sieves with high isomerization selectivity to di-branched paraffins[J]. Journal of Catalysis, 2012, 285(1). [16]张田英, 李奉孝, 王进善.缓和加氢裂化催化剂表面酸性对催化剂活性的影响[J].石油大学学报(自然科学版), 1990(04):68-75. [17]杨占林, 姜虹, 唐兆吉, 等.加氢裂化预处理催化剂的制备及其性能[J].石油化工, 2014, 43(09):1008-1013