当前位置：
X-MOL 学术
›
Ind. Eng. Chem. Res.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Inhibition of CO in Blast Furnace Flue Gas on Poisoning and Deactivation of a Ni/Activated Carbon Catalyst in COS Hydrolysis
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-12-01 , DOI: 10.1021/acs.iecr.1c03298 Honghong Yi 1, 2 , Chengcheng Du 1 , Xiaodong Zhang 1 , Shunzheng Zhao 1, 2 , Xizhou Xie 1 , Leilei Miao 1 , Xiaolong Tang 1, 2
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-12-01 , DOI: 10.1021/acs.iecr.1c03298 Honghong Yi 1, 2 , Chengcheng Du 1 , Xiaodong Zhang 1 , Shunzheng Zhao 1, 2 , Xizhou Xie 1 , Leilei Miao 1 , Xiaolong Tang 1, 2
Affiliation
|
A new method for delaying or avoiding catalyst poisoning in COS catalytic hydrolysis was found by using one of the existing gas components in blast furnace flue gas: CO. In this work, wood-based activated carbon (AC) catalysts were prepared, and the experimental results of COS catalytic hydrolysis showed that 10% Ni/AC could completely hydrolyze COS in a N2 atmosphere within 380 min, while there was no obvious deactivation within 1200 min in a CO atmosphere. The corresponding characterization showed that the oxidation process of H2S to sulfate (SO42–) was inhibited, and it was easier to desorb from the catalyst surface in a CO atmosphere. Obvious electron transfer occurred on the catalyst surface, and the enrichment and conversion of sulfate (SO42–) on the catalyst surface were inhibited. The excellent durability in CO can be attributed to the inhibition of sulfate formation by the presence of CO and the supplement of hydroxyl consumed on the catalyst surface by the presence of H2O, which is the key factor to inhibit the poisoning or deactivation of the catalyst in COS hydrolysis.
中文翻译：
高炉烟气中 CO 对 COS 水解中镍/活性炭催化剂中毒和失活的抑制作用
利用高炉烟气中现有的一种气体成分：CO，找到了一种延缓或避免 COS 催化水解催化剂中毒的新方法。 COS催化水解结果表明，10% Ni/AC在N 2气氛下可在380 min内完全水解COS ，而在CO气氛下1200 min内无明显失活。相应的表征表明，H 2 S氧化为硫酸盐（SO 4 2-）的过程受到抑制，并且在 CO 气氛中更容易从催化剂表面解吸。催化剂表面发生明显的电子转移，硫酸盐（SO4 2- ) 在催化剂表面被抑制。CO 优异的耐久性可归因于 CO 的存在抑制硫酸盐的形成，以及 H 2 O的存在补充了催化剂表面消耗的羟基，这是抑制催化剂中毒或失活的关键因素。 COS水解的催化剂。
更新日期：2021-12-15
中文翻译：
高炉烟气中 CO 对 COS 水解中镍/活性炭催化剂中毒和失活的抑制作用
利用高炉烟气中现有的一种气体成分：CO，找到了一种延缓或避免 COS 催化水解催化剂中毒的新方法。 COS催化水解结果表明，10% Ni/AC在N 2气氛下可在380 min内完全水解COS ，而在CO气氛下1200 min内无明显失活。相应的表征表明，H 2 S氧化为硫酸盐（SO 4 2-）的过程受到抑制，并且在 CO 气氛中更容易从催化剂表面解吸。催化剂表面发生明显的电子转移，硫酸盐（SO4 2- ) 在催化剂表面被抑制。CO 优异的耐久性可归因于 CO 的存在抑制硫酸盐的形成，以及 H 2 O的存在补充了催化剂表面消耗的羟基，这是抑制催化剂中毒或失活的关键因素。 COS水解的催化剂。
京公网安备 11010802027423号