|本期目录/Table of Contents|

[1]甄涛,宋君辉,金吉海,等.针状焦原料选择性加氢脱硫催化剂制备与性能[J].石化技术与应用,2023,5:332-335.
 ZHEN Tao,SONG Jun-hui,JIN Ji-hai,et al.Preparation and performance of selective hydrodesulfurization catalyst for needle coke raw material[J].Petrochemical technology & application,2023,5:332-335.
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针状焦原料选择性加氢脱硫催化剂制备与性能(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2023年5期
页码:
332-335
栏目:
出版日期:
2023-09-10

文章信息/Info

Title:
Preparation and performance of selective hydrodesulfurization catalyst for needle coke raw material
文章编号:
1009-0045(2023)05-0332-04
作者:
甄涛宋君辉金吉海焦祖凯严金龙张铎
(中海油炼油化工科学研究院,北京 102200)
Author(s):
ZHEN TaoSONG Jun-huiJIN Ji-haiJIAO Zu-kaiYAN Jin-longZHANG Duo
(Research Institute of Refining and Chemical Industry,CNOOC,Beijing 102200,China)
关键词:
络合浸渍碱性络合剂催化裂化油浆针状焦原料加氢脱硫催化剂
Keywords:
complexation impregnationbasic complexing agentcatalytic cracking slurryneedle coke raw materialhydrodesulfurizationcatalyst
分类号:
TE 624.9+3
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2023.05.0332
文献标识码:
B
摘要:
以改性氧化铝为载体,采用络合浸渍法,制备出低金属含量、高选择性脱硫催化剂。以催化裂化脱固油浆为原料,在反应温度为290~320 ℃,反应压力为6 MPa,氢油体积比为1 000∶1,体积空速为1.0 h-1的条件下,考察了所制备催化剂的选择性脱硫性能。结果表明:浸渍过程中添加酸性有机助剂,催化剂孔道拓宽,酸性增强,载体与活性金属相互作用增强;浸渍过程中添加碱性有机助剂,催化剂孔道拓宽,酸性降低,载体与活性金属相互作用减弱,有利于活性金属硫化形成更多活性位,催化剂的脱硫性能明显增强;在反应温度为320 ℃时,采用碱性络合剂制备的催化剂,加氢后产品含硫量降至4 970 μg/g,脱硫率为55.6%,3~4环芳烃质量分数为42.1%,保留率为83.9%,适合作为优质针状焦原料。
Abstract:
Using modified alumina as carrier, a high selective desulfurization catalyst with low metal content was prepared by complexation-impregnation method. The fluid catalytic cracking desolid slurry was used as raw material. The selective desulfurization performance of the catalyst was investigated at the reaction temperature of 290-320 ℃, the reaction pressure of 6 MPa, the hydrogen to oil volume ratio of 1 000∶1, and the space velocity of 1.0 h-1. The results showed that the addition of acidic organic additives during the impregnation process broadened the catalyst pores, enhanced acidity, and enhanced interaction between the carrier and the active metal. By adding alkaline organic additives, the catalyst pores were widened, the acidity was reduced, and the interaction between the carrier and the active metal was weakened. This was beneficial for the sulfurization of active metals to form more active sites, and the desulfurization performance of the catalyst was significantly enhanced. At the reaction temperature of 320 ℃, the catalyst prepared with basic complexing agent reduced the sulfur content of the product to 4 970 μg/g with the desulfurization rate of 55.6%. And the mass fraction of tricyclic and tetracyclic aromatic hydrocarbons had been reduced to 42.1% with the retention rate of 83.9%. This hydrogenation product was suitable as the high-quality needle coke raw material.

参考文献/References

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备注/Memo

备注/Memo:
中海石油炼化有限公司资助项目(项目编号:LHTISA 20210044)
更新日期/Last Update: 2023-09-10