文献类型：期刊文献

中文题名：304不锈钢上丙烷脱氢结焦反应的影响因素与积炭组成研究

英文题名：Study on influencing factors and composition of carbon deposition of coking in propane dehydrogenation reaction on 304 stainless steel

作者：朱友亮[1];王光第[1];隋志军[1];朱贻安[1];周兴贵[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2022

卷号：47

期号：5

起止页码：72

中文期刊名：天然气化工—C1化学与化工

外文期刊名：Natural Gas Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：国家自然科学基金(91645122)。

语种：中文

中文关键词：丙烷脱氢;壁面结焦;积炭组成;部分析因实验

外文关键词：propane dehydrogenation;coking on wall;carbon deposition composition;partial factorial experiment

摘要：丙烷脱氢制丙烯过程中,脱氢径向移动床反应器壁面可能发生结焦,严重危害反应器的稳定运行。采用部分析因实验法考察了反应温度、反应物(丙烷、丙烯、氢气和二甲基二硫醚)流量以及工业脱氢催化剂粉末、氯离子和铁离子对反应器壁面材料(304不锈钢)结焦过程的影响,利用TGA、SEM、HRTEM和Raman等表征了结焦生成物积炭的组成。结果表明,铁离子和反应温度是影响不锈钢上结焦反应的主要因素,反应物流量对结焦反应没有显著影响。不锈钢上生成的积炭包括脂肪烃、芳香烃和大量以纳米碳纤维为主的类石墨物质。
In the propane dehydrogenation process, coking reaction may occur on the wall of dehydrogenation radial moving bed reactor, which seriously endangers the stable operation of the reactor. The effects of reaction temperature, reactant ffow rate(propane,propylene, hydrogen and dimethyl disulfide) and the presence of industrial dehydrogenation catalyst powder, chloride ion and iron ion on the coking process of the reactor wall material(304 stainless steel) were investigated by partial factorial experiment. The composition of carbon deposition in coking products was characterized by TGA, SEM, HRTEM, Raman and so on. The results show that the existence of iron ion and reaction temperature are the main factors affecting the coking reaction on stainless steel, but the ffow rates of different reactants have no significant inffuence on the coking reaction. The carbon deposition on stainless steel contains aliphatic hydrocarbons, aromatic hydrocarbons and a large number of graphite-like materials mainly composed of carbon nanofibers.