天然气化工（C1化学与化工）Issue(4)：24-28,48,6.
硫化合物对Pt-Sn-K/Al2O3催化剂催化异丁烷脱氢性能的影响
Influence of sulfur compounds on performance of Pt-Sn-K/Al2O3 catalyst for isobutane dehydrogenation
周广林 1蒋晓阳 1崔丹丹1
作者信息
- 1. 中国石油大学 北京 新能源研究院，北京 昌平 102249
- 折叠
摘要
Abstract
The influence of sulfur compounds on the performance of Pt-Sn-K/Al2O3 catalyst for isobutane dehydrogenation reaction was investigated in a fixed-bed reactor. The results showed that, under the reaction conditions of 580℃, 0.1MPa, V (H2)/V(i-C4H10) of 2 in the feedstock, GHSV for total feedstock of 2000h-1, and GHSV for i-C4H10 of 667h-1, the addition of ethanethiol, diethyl sulfide and carbon disulfide led to a decline of isobutane conversion and a rise of isobutene selectivity; and the higher the concentration of sulfur compounds in the feedstock was, the larger the decline of the dehydrogenation activity of the catalyst was. When the mass fraction of sulfur from the sulfur compounds in feedstock was 200 ×10-6, the toxicity of different sulfur compounds on the dehydrogenation activity of Pt-Sn-K/AI2O3 catalyst was as follows: C4H4S (thiophene)>EtSH≈Et2S≈CS2≈PrSH≈H2S. The poisoning of Pt-Sn-K/Al2O3 catalyst caused by sulfur compounds was reversible.关键词
Pt-Sn-K/Al2O3催化剂/异丁烷/脱氢/硫化合物Key words
Pt-Sn-K/Al2O3 catalyst/isobutane/dehydrogenation/sulfur compound分类
化学化工引用本文复制引用
周广林,蒋晓阳,崔丹丹..硫化合物对Pt-Sn-K/Al2O3催化剂催化异丁烷脱氢性能的影响[J].天然气化工（C1化学与化工）,2015,(4):24-28,48,6.
