文献类型：会议论文

英文题名：Anti-coking Effect of MnCr2O4 Spinel Coating during Light Naphtha Thermal Cracking

作者：Bao, Binbin[1];Wang, Zhiyuan[2];Xu, Hong[1];Liu, Jinglei[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China

会议论文集：8th International Conference on Applied Energy (ICAE)

会议日期：OCT 08-11, 2016

会议地点：Beijing Inst Technol, Beijing, PEOPLES R CHINA

主办单位：Beijing Inst Technol

语种：英文

外文关键词：MnCr2O4 spinel coating; Coking; Light naphtha; Raman spectra

摘要：The research aimed at fabricating MnCr2O4 spinel coating on HP 40 alloy, and evaluating the influence of the spinel coating on coking behavior during thermal cracking of light naphtha. MnCr2O4 spinel coating formed on the alloy surface by selectively oxidized under low oxygen partial pressure atmosphere at 1050 degrees C for 20 h. The as-formed spinel coating was characterized by scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The results show that the spinel scale is uniform and compact, with blade-like structures on the top. The coking behavior was studied from the morphology and microstructure of coke, and characterized by scanning electron microscope (SEM) and Raman spectra, respectively. The results show that, only globular coke presents on MnCr2O4 spinel coating compared with blank alloy, and the coke exhibits more disordered graphite structures. Thus, the spinel scale has a favorable anti-coking property. (C) 2017 The Authours. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license