无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2025, Vol. 57 ›› Issue (7): 127-133.doi: 10.19964/j.issn.1006-4990.2024-0254

• 催化材料 • 上一篇    下一篇

悬浮物制备高活性催化裂化基质材料及其催化性能研究

张莉1(), 胡清勋1, 陈军2, 柳黄飞1, 方华1, 王久江1, 刘宏海1, 曹庚振1   

  1. 1.中国石油,石油化工研究院兰州化工研究中心,甘肃 兰州 730060
    2.中国石油,石油化工研究院昆冈先进制造(北京)有限公司,甘肃 兰州 730060
  • 收稿日期:2024-05-07 出版日期:2025-07-10 发布日期:2024-07-30
  • 作者简介:张莉(1976— ),女,博士,高级工程师,主要从事催化裂化、裂解催化剂和材料的研究与开发;E-mail:zhangl3@petrochina.com.cn
  • 基金资助:
    中国石油重大科技专项(2016E-0701)

Study on highly active FCC matrix materials prepared by suspended solids and catalytic performance

ZHANG Li1(), HU Qingxun1, CHEN Jun2, LIU Huangfei1, FANG Hua1, WANG Jiujiang1, LIU Honghai1, CAO Gengzhen1   

  1. 1. Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou 730060,China
    2. Kungang Advanced Manufacturing(Beijing) Co. ,Ltd. ,Lanzhou Branch,PetrochemicalResearch Institute,PetroChina,Lanzhou 730060,China
  • Received:2024-05-07 Published:2025-07-10 Online:2024-07-30

摘要:

应催化裂化领域开发低成本、高活性基质材料以提高催化剂反应性能的迫切需求,以原位晶化型催化裂化催化剂晶化工序中产生的悬浮物为研究对象,借助XRD、SEM、NH3-TPD、氮气吸附、粒度等表征手段对改性前后的悬浮物进行表征,并研究其应用于半合成型催化裂化催化剂中的催化性能。系统表征、评价结果表明:悬浮物为Y型分子筛和无定形硅铝物质的混合物,元素组成以氧化硅、氧化铝等为主,改性后悬浮物比表面积为490 m2/g、孔体积为0.42 cm3/g,结构稳定性优异,具有较高的总酸量,800 ℃、17 h微反活性达35%,显著高于在用基质材料。与未加悬浮物的催化剂相比,含悬浮物的催化剂在干气、焦炭不增加的情况下,转化率从81.1%增加到83.9%,重油收率从6.17%降低到5.06%,汽油收率从52.10%增加到53.95%,总液体收率从85.37%增加到86.59%,显示出优异的重油转化能力和产品选择性,可作为一种低成本、高性能基质材料应用于催化裂化领域。

关键词: 催化裂化, 悬浮物, 基质材料

Abstract:

In order to develop low-cost and highly active matrix materials in the field of catalytic cracking to improve the reaction performance of catalysts,the suspended solids generated in the in-situ crystallization catalytic cracking catalysts process are studied.XRD,SEM,NH3-TPD,nitrogen adsorption,particle size and other characterization methods were used to characterize the suspended solids before and after modification,and their catalytic performance was studied when applied to semi-synthetic catalytic cracking catalysts.The system verification and evaluation results indicated that the suspension was a mixture of Y-shaped molecular sieve and amorphous silicon aluminum material,with elemental composition mainly composed of silicon oxide,aluminum oxide,etc.After modification,the suspension had the Brunauer-Emmett-Teller(BET) surface area of 490 m2/g and pore volume of 0.42 cm3/g.It had excellent structural stability and a high total acid content.The micro reactivity reached 35% at 800 ℃ for 17 hours,significantly higher than that of the matrix material in use.Compared with catalysts without suspended solids,catalysts containing suspended solids showed that the conversion yield was increased from 83.9% to 81.1%,the slurry yield was decreased from 6.17% to 5.06% and gasoline yield was increased from 52.10% to 53.95%,total liquid yields was increased from 85.37% to 86.59%,without increasing dry gas and coke.It demonstrated that suspended sludge had excellent heavy oil conversion ability and product selectivity,and could be used as a low-cost,high-performance matrix material in the field of fluid catalytic cracking.

Key words: fluid catalytic cracking, suspended sludge, matrix material

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