Agglomeration of Solid Particles in Fluidized Catalytic Cracking Slurry Oil: Particle Separation by the Oil-Water Interface and Particle Composition Analysis

Di Zhang; Yang Dai; Kun Chen; Aijun Guo; He Liu; Zongxian Wang

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Agglomeration of Solid Particles in Fluidized Catalytic Cracking Slurry Oil: Particle Separation by the Oil-Water Interface and Particle Composition Analysis

机译：流化催化裂解浆油中固体颗粒的凝聚：油水界面颗粒分离及颗粒成分分析

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Separation of solid particles in fluidized catalytic cracking slurry oil (SLO) is a tricky task because of their distinctive composition. Centrifugation and the oil–water interface method were used to separate solid particles in SLO. The results indicated that the oil–water interface method was better in particle separation. For instance, about 10 wt % fine coke powders can be separated by the oil–water interface method instead of centrifugation at the same conditions. Two different types of solid particles after ethanol/toluene extraction, i.e., catalyst fines and coke powders, were taken to investigate the composition of bulk solid particles. It was found that bulk solid particles were inborn coated by carbonaceous components rich in oxygenates and then modified by hydrogen-rich chemisorbed organics. The mechanism of particle agglomeration and separation by the oil–water interface method was proposed. Since water is cheap and accessible, this study could provide a green and efficient way for fine solid particle separation in SLO.

机译：由于其独特的组成，在流化催化裂化浆料油（SLO）中的固体颗粒的分离是一种棘手的任务。离心和油水界面方法用于分离SLO中的固体颗粒。结果表明，油水界面法在颗粒分离中更好。例如，约10wt％细焦粉可通过油 - 水界面方法分离而不是在相同条件下离心。乙醇/甲苯萃取后的两种不同类型的固体颗粒，即催化剂细粒和焦炭粉末，以研究本体固体颗粒的组成。发现将块状固体颗粒天生通过富含含氧化合物的碳质成分，然后通过富含氢的化学吸附物质改性。提出了颗粒聚集和通过油水界面法分离的机理。由于水便宜且可达，这项研究可以为SLO的精细固体颗粒分离提供一种绿色和有效的方法。

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来源
《Energy & fuels》 |2021年第4期|3219-3227|共9页
作者
Di Zhang; Yang Dai; Kun Chen; Aijun Guo; He Liu; Zongxian Wang;
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作者单位

State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China);

State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China);

State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China);

State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China);

State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China);

State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China University of Petroleum (East China);

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
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Agglomeration of Solid Particles in Fluidized Catalytic Cracking Slurry Oil: Particle Separation by the Oil-Water Interface and Particle Composition Analysis

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