首页|Hydrodynamics and OCM reaction performance in a bubbling fluidized bed reactor and a riser reactor

Hydrodynamics and OCM reaction performance in a bubbling fluidized bed reactor and a riser reactor

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The reasonable reactor design is of great importance for increasing the C2 yield(C2H4 and C2H6)of the oxidative coupling of methane(OCM),and the OCM reactor should remove the heat released in reactions quickly and efficiently and minimize the consecutive reaction of ethylene to carbon oxides.The fluidized bed reactor is characterized by excellent heat transfer,superior mass transport,and large handling ca-pacity,while fewer studies focused on large-scale fluidized bed reactors for the OCM reaction.Therefore,large cold-model experiments and computational fluid dynamics simulations were conducted to investigate hydrodynamics and the OCM reaction performance in a large-scale bubbling fluidized bed(BFB)and a large-scale riser.In the BFB reactor,consecutive reactions of ethylene are acute because of the strong gas back-mixing,high solids holdup,and non-uniform solids distribution.While the consecutive reactions of ethylene are negligible due to the plug flow structure and low solids holdup in the riser reactor.Further,both reactors can achieve isothermal operation for the OCM process.The C2 selectivity of 45.4％and C2 yield of 21.1％are obtained in the riser reactor,increasing by 20.3％and 5.8％individually than that in the BFB reactor.This study provides useful information and reference to the OCM reactor design and commercialization.

Oxidative coupling of methaneBubbling fluidized bed reactorRiser reactorHydrodynamicsIsothermal operation

Min Cai、Shuangzhu Kong、Sheng Chen、Mengxi Liu、Chunxi Lu

展开 >

State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing,102249,China

China Special Equipment Inspection and Research Institute,Beijing,102249,China

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaScience Foundation of China University of Petroleum,Beijing

2021YFA1501304219611320262462022QZDX003

2024

10.1016/j.partic.2023.05.008

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)：2024.86(3)
  • 62