石油化工2012，Vol.41Issue(9)：999-1004,6.
硫粉改性Mo基耐硫甲烷化催化剂
Mo-Based Catalyst Modified with Sulfur for Sulfur-Resistant Methanation
尚玉光 1王保伟 1李振花 1马新宾 1秦绍东 2孙琦2
作者信息
- 1. 天津大学化工学院绿色合成与转化教育部重点实验室,天津300072
- 2. 北京低碳清洁能源研究所,北京102209
- 折叠
摘要
Abstract
15%(w)Mo/Al2O3 and 20%(w)Mo/25%(w)CeO2-Al2O3 catalysts were sulfurized by conventional sulfurization with a mixture of hydrogen sulfide and H2 or modification with sulfur powder. The activity of the catalysts for sulfur-resistant methanation was evaluated. The CO conversions at 600 ℃ on 15%(w)Mo/Al2O3 and 20%(w)Mo/25%(w)CeO2-Al2O3 catalysts modified with sulfur powder were 60.3% and 71.0%, while they were only 49.8% and 61.2% on the catalysts treaded by the conventional sulfurization, respectively. The sulfurization with sulfur powder improved the methanation activity of the catalysts. All the catalysts were characterized by means of N2 adsorption-desorption, XRD, Raman spectrum and XRF. It was found that both the sulfurization methods could make MoO3 completely transformed, and the sulfurization modification with sulfur powder increased n(S) : n(Mo) and led to the appearance of MoS2 crystals.关键词
硫化/硫化氢/硫粉/钼基催化剂/耐硫甲烷化Key words
sulfurization/ hydrogen sulfide/ sulfur powder/ molybdenum-based catalyst/ sulfur- resistant methanation分类
化学化工引用本文复制引用
尚玉光,王保伟,李振花,马新宾,秦绍东,孙琦..硫粉改性Mo基耐硫甲烷化催化剂[J].石油化工,2012,41(9):999-1004,6.
