Poisoning of thiophene hydrodesulfurization by nitrogen compounds
Poisoning of thiophene hydrodesulfurization by nitrogen compounds
复制标题
DOI：
10.1016/0021-9517(88)90328-4
复制
发表时间：
1988-04
影响因子：
7.3
通讯作者：
V. LaVopa;C. Satterfield
中科院分区：
文献类型：
--
作者：
V. LaVopa;C. Satterfield
非位阻氮化合物的中毒效应表示为源自噻吩加氢脱硫 (HDS) 的 Langmuir-Hinshelwood 动力学的抑制吸附常数，与气相碱度（质子亲和力）密切相关。吸附强度的顺序与加氢处理催化剂和酸性裂化催化剂中毒报道的顺序基本一致。噻吩 HDS 研究中的抑制剂吸附常数与二苯并呋喃加氢脱氧抑制的测量结果密切相关，即使 N 化合物经历了相当大的反应，并且有必要考虑反应中间体的抑制作用。在 7.0 MPa 和 300 至 400°C 下对 NiMo Al 2 O 3 催化剂进行研究。
The poisoning effect of nonsterically hindered nitrogen compounds, expressed as inhibition adsorption constants derived from Langmuir-Hinshelwood kinetics for thiophene hydrodesulfurization (HDS), correlated well with gas-phase basicity (proton affinity). The order of adsorption strength agrees generally with that reported for poisoning of hydroprocessing catalysts and of acidic cracking catalysts. Inhibitor adsorption constants from thiophene HDS studies correlated well with measurements of inhibition of the hydrodeoxygenation of dibenzofuran, even when the N-compound underwent considerable reaction and it was necessary to account for the inhibiting effects of reaction intermediates. Studies were on a NiMo Al 2 O 3 catalyst at 7.0 MPa and 300 to 400° C.