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Dependence of Fluid Catalytic Cracking Unit Performance on H‐Oil Severity, Catalyst Activity, and Coke Selectivity
Chemical Engineering & Technology ( IF 2.1 ) Pub Date : 2020-08-24 , DOI: 10.1002/ceat.202000071
Dicho Stratiev 1 , Ivelina Shishkova 1 , Mihail Ivanov 1 , Ivan Chavdarov 1 , Dobromir Yordanov 2
Affiliation  

The effect of the quality of ebullated bed vacuum residue H‐Oil hydrocracking gas oils cracked in a commercial fluid catalytic cracking unit (FCCU) on its performance was studied. Six different catalysts were employed in this study. Four catalysts were tested in a commercial FCCU, and two in a laboratory FCCU. An increase of the H‐Oil hydrocracker reaction temperature was associated with a decrease in the KW factor of the H‐Oil gas oils. The diminished KW factor of H‐Oil gas oils resulted in lower FCCU conversion and higher regenerator temperatures. The FCC conversion at maximum gasoline yield is best predicted by the feed KW factor. The higher‐activity, higher‐Δcoke catalyst is unfavorable for FCCU performance because the excessive regenerator temperature excursions require reduction of the throughput.

中文翻译:

流体催化裂化装置性能对H-油强度,催化剂活性和焦炭选择性的依赖性

研究了在商用流化催化裂化装置(FCCU)中裂解的沸腾床减压渣油H‐Oil加氢裂化瓦斯油的质量对其性能的影响。在这项研究中使用了六种不同的催化剂。在商用FCCU中测试了四种催化剂,在实验室FCCU中测试了两种催化剂。H-Oil加氢裂化器反应温度的升高与H-Oil瓦斯油的K W系数降低相关。氢瓦斯油的K W系数减小导致FCCU转化率降低和再生器温度升高。在最大汽油产率的FCC转化最好通过进给预测ķ W¯¯因子。高活性,高Δ焦炭的催化剂不利于FCCU性能,因为过量的再生器温度偏移会降低生产量。
更新日期:2020-10-20
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