Inorganic Chemicals Industry ›› 2019, Vol. 51 ›› Issue (8): 83-87.doi: 10.11962/1006-4990.2018-0521
• Catalytic Materials • Previous Articles Next Articles
Xiong Xiaoyun,Hu Qingxun,Zhao Hongjuan,Gao Xionghou
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Abstract:
The industrial pseudo-boehmite was deeply characterized,and the impacts of pseudo-boehmite peptizing acid-to-alumina ratio,pseudo-boehmite content in the catalyst and alumina gel′s content on the cracking performance of heavy oil molecules of FCC catalysts were studied in detail.Results showed that when peptizing acid-to-alumina ratio(volume to massratio,mL/g) was increased from 0 to 0.20,pore volume of the catalyst was decreased from 0.39 cm3/g to 0.27 cm3/g.Acidity amount firstly increased and then decreased after acidification.Pore volume decreased and conversion ability of heavy oil firstly increased and then decreased.When pseudo-boehmite′s content in FCC catalyst was increased from 10% to 25%,conversion ability of heavy oil of the catalyst increased gradually,but with the increase of pseudo-boehmite content,the decreasing trend of heavy oil yield gradually decreased.The increase of alumina gel content would lead to a decrease in the pore volume of the catalyst and a decrease in the conversion capacity of the catalyst heavy oil.
Key words: pseudo-boehmite, alumina gel, catalytic cracking, heavy oil conversion
CLC Number:
TQ133.1
Xiong Xiaoyun,Hu Qingxun,Zhao Hongjuan,Gao Xionghou. Impact of alumina matrix on cracking performance of heavy oil molecule of FCC catalyst[J]. Inorganic Chemicals Industry, 2019, 51(8): 83-87.
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URL: https://www.wjygy.com.cn/EN/10.11962/1006-4990.2018-0521
https://www.wjygy.com.cn/EN/Y2019/V51/I8/83
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