首页|Waste to treasure:Reutilization of fluid catalytic cracking coke block as photothermal conversion material for water evaporation

Waste to treasure:Reutilization of fluid catalytic cracking coke block as photothermal conversion material for water evaporation

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This study aims to analyze the coking process and propose an effective method for the reutilization of fluid catalytic cracking(FCC)coke block.Herein,we analyzed the basic characteristics and chemical composition of FCC coke blocks.The results showed that the main components were carbon,oxygen,and aluminum,accounting for 60.8％,26.6％,and 11.5％,respectively.Under the conventional catalytic cracking reaction temperature from 500 ℃ to 600 ℃,the formation of the first aromatic hydrocarbon was particularly important for the formation of coke.The condensation of oil-gas-entrained catalyst particles and their heavy components was the physical cause of coking,while the dehydrogenation condensation reaction of oil-gas heavy components was the chemical factor.In addition,the membrane prepared by powdered coke had excellent photothermal conversion ability,which could be heated to more than 110 ℃ within 360 s under two fixed light intensities.The evaporation rate of photothermal water was 5.89 kg m2 h-1,which has great industrial application potential.These works provide a novel and effective method of separation membrane for the reutilization of FCC coke blocks.

Coking processReutilization of FCC cokeCarbonaceous depositionMembranePhotothermal conversion

Zhuwei Gao、Chengxin Li、Jingjing He、Zhuo Wang、Xinyu Qi、Lan He、Shihao Wang、Zhongxin Liu

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School of Chemical Engineering and Technology,Hainan University,Haikou 570228,China

TJ-YZ School of Network Science,Haikou University of Economics,Haikou 570203,China

School of Food Science and Engineering,Hainan University,Haikou 570228,China

Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education,Hainan University,Haikou 570228,China

Hainan Provincial Key Laboratory of Fine Chemicals,Hainan University,Haikou 570228,China

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国家自然科学基金Scientific Research Staring Foundation of Hainan UniversityYoung Talents'Science and Technology Innovation Project of Hainan Association for Science and TechnologyHainan Provincial Natural Science FoundationHainan Provincial Natural Science Foundation

12202127KYQDZR20042QCXM202027520QN228323MS009

2024

10.1016/j.partic.2023.09.002

颗粒学报(英文版)
中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD
影响因子：0.632
ISSN：1674-2001
年,卷(期)：2024.88(5)
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