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Research on Ethylene and Propylene Formation during Catalytic Pyrolysis of Methylcyclohexane

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China Petroleum Processing & Petrochemical Technology 2012年第4期14卷 73-79页

作者： Yu Shan zhang jiushun Wei Xiaoli Research Institute of Petroleum Processing SINOPEC

The influence of operating parameters and type of zeolite catalysts on formation of ethylene and propylene during catalytic pyrolysis of methylcyclohexane (MCH) was studied in a laboratory fixed fluidized bed reactor. The results indicated that higher reaction temperature and lower WHSV tended to produce more ethylene and propylene, among which the reaction temperature was an important factor influencing the ethylene formation. Compared with the FAU and BEA type zeolites, the MFI structured zeolite catalyst, thanks to more acid sites and smaller pore diameter of the catalyst, was conducive to the formation of ethylene and propylene. The protonation occurred on different C—C bonds and C—H bonds in the carbon chain of MCH led to different product slates, and the protonation on C—C bonds located at naphthenic ring was favorable to the formation of ethylene and propylene.

关键词： methylcyclohexane catalytic pyrolysis ethylene propylene reaction pathway

Roles of Emerging FCC-based Technologies in Shifting to Petrochemicals Production

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China Petroleum Processing & Petrochemical Technology 2017年第4期19卷 1-5页

作者： Xie Chaogang Gao Yongcan Zhu Genquan zhang jiushun SINOPEC Research Institute of Petroleum Processing Beijing 100083

The emerging FCC-based technologies are applied in an attempt to shift to the production of designated light olefins(including mainly ethylene and propylene) as well as light aromatics(including benzene, toluene, and xylene)developed by the Research Institute of Petroleum Processing(RIPP), SINOPEC. The RIPP's proprietary technologies covering the Deep Catalytic Cracking(DCC), the Enhanced Deep Catalytic Cracking(DCC-PLUS), and the Maximizing Catalytic Propylene(MCP) have been playing decisive roles in the processing of crude aimed at closer integration of petroleum refining and petrochemical production both inside and outside of China since 1990. Three cases of commercial applications in five refineries, including Case Ⅰ— the closer integration between the steam cracker and the DCC/DCC-PLUS unit, Case Ⅱ— the petrochemical refinery provided with a DCC-PLUS unit, and Case Ⅲ— the integrated petrochemical/fuels refinery provided with a MCP unit, have highlighted their far-reaching effects on global petrochemicals production.

关键词： deep catalytic cracking propylene benzene toluene xylene

Oligomerization of C_4 Fraction from FCCU on ZSM-5

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China Petroleum Processing & Petrochemical Technology 2004年第4期6卷 31-36页

作者： Wu Zhiguo zhang jiushun(Research Institute of Petroleum Processing, SINOPEC, Beijing 100083) Res. Inst. of Petroleum Processing SINOPEC Beijing 100083 China

In order to make more liquid products like gasoline, the oligomerition of a C4 feedstock taking placeon catalyst containing ZSM-5 was studied in a pressurized reactor. The products were C5- gas, liquid hydro-carbons and coke. During the reaction on the catalyst BO-1, when the WHSV was 0.71h-1 and total pressurewas 4.0MPa, the C5+ product yield reached a maximum at a temperature around 320℃. As oligomerizationreaction was the dominating one, there were minor C9 hydrocarbons in liquid products and the main productswere C7 and C8 olefins and n- C10 paraffins. When the temperature was higher than 286℃, a small amount of C9hydrocarbons was formed and more normal and isomeric paraffins other than olefins were formed in *** yield increased linearly with a rising total pressure under the same operating conditions.

关键词： oligomerization C4 fraction catalyst liquid product

Commercial Test of HGY-2000R FCC Catalyst for Maximizing Gasoline Yield

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China Petroleum Processing & Petrochemical Technology 2003年第1期5卷 23-27页

作者： zhang jiushun Xu Mingde Gao Yongcan Chang Xueliang(Research Institute of Petroleum Processing, Beijing 100083) Res. Inst. of Petroleum Processing Beijing 100083 China

HGY-2000R catalyst developed by Research Institute of Petroleum Processing, SINOPEC wastested in the RFCC unit, Ulsan complex, SK Corporation, Korea from July to August 2002. The primaryresults of commercial test show that it has good performance of higher activity, good hydrothermal stability,higher residue cracking ability, good coke selectivity and good fluidization properties as well as maximizinggasoline yield with a lower olefin content.

关键词： catalytic cracking catalyst gasoline yield olefin

A New FCC Process MIP for Production of Clean Gasoline Component

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China Petroleum Processing & Petrochemical Technology 2001年第3期3卷 43-48页

作者： Xu Youhao zhang jiushun Long Jun Wang Xieqing Research Institute of Petroleum Processing Beijing 100083 Research Institute of Petroleum Processing Beijing 100083 Research Institute of Petroleum Processing Beijing 100083 Research Institute of Petroleum Processing Beijing 100083

A concept of two different reaction zones was proposed based on the FCC reaction mechanism,and verified by the experimental results of a fixed fluidized bed reactor. The concept was used to design a novel reactor with corresponding operation measures. Further experiments were conducted on the newly designed pilot scale riser reactor. In comparison with the conventional FCC at relatively equivalent conversion,the pilot test results had shown that the olefin content in the cracked naphtha dropped by 12.4%, and both of iso-paraffin and aromatics increased by 6%, and its MON increased by 1.3 units while maintaining the RON of the naphtha unchanged, and its sulfur content was reduced by 15% with a significant extension of its induction period for Shengli VGO + VR.

关键词： catalytic cracking riser reactor reaction mechanism gasoline stock olefin

ZRP分子筛催化丙烷芳构化产物中二甲苯异构体的分布

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石油化工 2005年第9期34卷 835-839页

作者：章治平张久顺高永灿中国石油化工股份有限公司石油化工科学研究院北京100083

在小型常压固定床反应器内考察了丙烷在ZRP分子筛和硅改性ZRP分子筛上的芳构化反应,实验结果表明,在ZRP分子筛上,液体产物中的二甲苯异构体基本上呈热力学平衡分布,对位选择性差;在硅改性ZRP分子筛上,随S iO2含量的增加,ZRP分子筛外表... 详细信息

在小型常压固定床反应器内考察了丙烷在ZRP分子筛和硅改性ZRP分子筛上的芳构化反应,实验结果表明,在ZRP分子筛上,液体产物中的二甲苯异构体基本上呈热力学平衡分布,对位选择性差;在硅改性ZRP分子筛上,随S iO2含量的增加,ZRP分子筛外表面的活性中心被覆盖的程度增加,液体产物中二甲苯异构体对位选择性逐渐增加。用吡啶吸附红外光谱、低温N2吸附容量法对硅改性ZRP分子筛进行表征,表征结果显示,丙烷芳构化反应的中间产物在ZRP分子筛外表面的活性中心发生二次异构化反应是最终产物中二甲苯异构体对位选择性差的主要原因。

关键词：丙烷芳构化反应二甲笨 ZRP分子筛催化硅改性对佗选择性

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FCC再生低碳排放供氢工艺探索研究

石油学报（石油加工） 2011年第4期27卷 516-521页

作者：吴治国汪燮卿张久顺中国石化石油化工科学研究院北京100083

再生器是催化裂化(FCC)工艺中二氧化碳(CO_2)排放的主要单元。随着掺渣比的增加,再生单元热量过剩,CO_2排放随之增加。利用部分焦炭生产合成气或H_2,不仅可以供氢,而且能够收集CO_2、硫等有害物,减少排放。实验数据显示,在700℃左右气... 详细信息

再生器是催化裂化(FCC)工艺中二氧化碳(CO_2)排放的主要单元。随着掺渣比的增加,再生单元热量过剩,CO_2排放随之增加。利用部分焦炭生产合成气或H_2,不仅可以供氢,而且能够收集CO_2、硫等有害物,减少排放。实验数据显示,在700℃左右气化待生剂上的焦炭,气体产物有效组分(CO+H_2)体积分数大于55%。对于加工2.0Mt/a原料油的重油催化裂化装置(RFCCU)来说,如果焦炭产率为10%,气化反应65%的焦炭,则具有生产9.8 kt/a H_2的潜力,如果分离系统回收CO_2,则可减少碳排放约60%。

关键词：催化裂化(FCC) 气化低碳合成气 H2

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调和汽油的蒸发性能及其改善方法探讨

化工进展 2015年第7期34卷 1846-1852页

作者：王迪张久顺中国石化石油化工科学研究院北京100083

环保法规的日益严格对汽车尾气排放的要求也越来越高,而汽车尾气排放与汽油的蒸气压和馏程分布密切相关。同时,蒸气压和馏程分布还影响汽车的启动性能、加速性能以及气缸积炭等。文章简述了为满足环保要求和保证汽车驾驶性能,汽油蒸气... 详细信息

环保法规的日益严格对汽车尾气排放的要求也越来越高,而汽车尾气排放与汽油的蒸气压和馏程分布密切相关。同时,蒸气压和馏程分布还影响汽车的启动性能、加速性能以及气缸积炭等。文章简述了为满足环保要求和保证汽车驾驶性能,汽油蒸气压和馏程分布应该达到的要求;介绍了几种能够改变汽油蒸气压和馏程分布的汽油改质方法,以及目前组成商品汽油的各种调和组分,比较了各种调和组分在蒸气压和馏程分布方面的性质特点,及其对成品汽油蒸气压和馏程分布的影响。分析表明,通过改变催化裂化汽油(FCC)过程工艺条件,可改善FCC汽油蒸气压和馏程分布,这是目前改善调和汽油蒸气压和馏程分布最为经济可行的方法;各调和组分中,烷基化油在改善汽油蒸气压和馏程分布方面是最理想的调和组分。

关键词：调和汽油蒸气压馏程分布

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环烷烃催化裂解生成乙烯和丙烯反应探析

石油学报（石油加工） 2013年第3期29卷 475-481页

作者：于珊张久顺魏晓丽中国石化石油化工科学研究院北京100083

采用小型固定流化床装置研究了不同环烷烃催化裂解生成乙烯和丙烯的反应规律。结果表明,环烷烃的催化裂解反应中,无取代基的双环环烷烃比单环环烷烃更有利于生成乙烯和丙烯,但两者容易发生脱氢缩合反应;给电子诱导效应相对最强的正丙基... 详细信息

采用小型固定流化床装置研究了不同环烷烃催化裂解生成乙烯和丙烯的反应规律。结果表明,环烷烃的催化裂解反应中,无取代基的双环环烷烃比单环环烷烃更有利于生成乙烯和丙烯,但两者容易发生脱氢缩合反应;给电子诱导效应相对最强的正丙基环己烷比甲基环己烷和乙基环己烷更易生成正碳离子,利于生成乙烯和丙烯;对于含有2个取代基的环烷烃,取代基之间的距离越近,环烷烃环上的电子分布越不均匀,越容易生成正碳离子;具有较大环张力和较小动力学直径的甲基环戊烷比甲基环己烷更易催化裂解生成乙烯和丙烯。根据甲基环戊烷催化裂解的产物分析和分子模拟计算结果,推测H+优先进攻甲基环戊烷取代基的碳原子,进而发生电荷转移,形成C(1)五配位正碳离子。

关键词：环烷烃催化裂解乙烯丙烯机理