文献类型：期刊文献

英文题名：Mitigating heat transfer limitation in packed bed reactors through using a novel internal

作者：Weng, Junqi[1,2];Lin, Zhenli[1];Shu, Zhongming[1];Ye, Guanghua[1];Zhou, Xinggui[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn & Low Carbon Technol, Shanghai 200237, Peoples R China;[2]SINOPEC, Shanghai Res Inst Petrochem Technol, Shanghai 201208, Peoples R China

年份：2026

卷号：220

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20260820093607);WOS:【SCI-EXPANDED(收录号:WOS:001641581900001)】；

基金：This work was financially supported by the National Key R & D Pro-gram of China (2023YFB4104502) , and the National Natural Science Foundation of China (22378115) .

语种：英文

外文关键词：Packed bed reactor; Metal internals; Heat transfer intensification; Particle-resolved CFD; Dry reforming of methane

摘要：Aided by particle-resolved CFD simulations, this study proposes a novel metal internal to enhance heat transfer in packed bed reactors, with dry reforming of methane as a model reaction. Under the same bed diameter (i.e., 31.4 mm), the bed with the internal can reduce pressure drop by 39 %, raise cold-spot temperature by 63 K, increase methane conversion by 11 %, and reduce catalyst amount by 27 %, compared to the conventional bed without the internal. Besides, the bed with the internal can adopt a larger bed diameter (61.4 mm for copper internal) to achieve comparable reactor performance with the conventional one (31.4 mm), yielding a 74 % reduction in tube number for a multi-tubular reactor. These improvements can be attributed to the presence of orderly catalyst particle packing and heat transfer "highway" after introducing this internal. This proposed metal internal is simple yet effective and thus shows great potential for industrial applications.