文献类型：期刊文献

英文题名：Comparison of the anti-coking performance of CVD TiN, TiO2 and TiC coatings for hydrocarbon fuel pyrolysis

作者：Tang, Shiyun Shi, Ning Wang, Jianli Tang, Anjiang

第一作者：Tang, Shiyun

通信作者：Tang, SY[1];Tang, AJ[1]

机构：[1]Guizhou Inst Technol, Coll Chem Engn, Guiyang 550003, Peoples R China;[2]Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China;[3]Sichuan Univ, Coll Chem, Key Lab Green Chem & Technol, Minist Educ, Chengdu 610064, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Coll Chem Engn, Guiyang 550003, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2017

卷号：43

期号：4

起止页码：3818-3823

外文期刊名：CERAMICS INTERNATIONAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000393937900049)】；

基金：The research was supported by S & T Plan Project Approving in Guizhou (No. Guizhou branch in LH word [2016] 7104), Brainstorm Project on Social Development by Department of Science and Technology of Guizhou Province (No. Guizhou branch in SY word [2014] 0358) and Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development (No. Y607sb1001).

语种：英文

外文关键词：Anti-coking performance; TiC coating; Oxidation resistance; Temperature programmed cracking

摘要：Previous work has shown that both TiN and TiO2 coatings can inhibit the metallic catalytic coking effectively, but both of them have their own shortage. In this work, TiC coating was prepared on the surface of SS304 tube using TiCl4-CH4-H-2 by CVD method. Its morphology, elemental composition, thickness and oxidation resistance were characterized by SEM, EDX, metalloscopy and TPO tests, respectively. The results show that CVD TiC coating is gray, homogeneous, and dense without cracks or holes. The TiC coating presents a cuboid particle structure with the sizes of about 1.0 mu m for the cuboid crystals, and the Ti/C ratio close to 1:1, while the average thickness is about 11.62 mu m. TPO results show that the TiC coating begins to react with O-2 and release CO2 at about 810 degrees C. Compared with the TiN coating (The initial oxidation temperature of TiN is about 350 degrees C), the oxidation resistance of TiC coating is improved substantially. As a conclusion, the high oxidation resistance order is TiO2 coating > TiC coating > TiN coating. Furthermore, the temperature programmed cracking of RP-3 Chinese jet fuel was employed to compare the anti-coking performance of TiN, TiO2 and TiC coatings. The results show that each of TiN, TiO2 and TiC coating has obvious anti-coking effect, and the anti-coking performance order is TiN coating=TiC coating > TiO2 coating.