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氨基-磷酸改性铁基空心玻璃微珠催化剂用于 天然气湿法氧化脱硫.

氨基-磷酸改性铁基空心玻璃微珠催化剂用于 天然气湿法氧化脱硫.

Authors :
宣玉娜
陈鸿元
王星渝
杨春韩
袁波
彭锐
刘志豪
邱奎
Source :
Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua Gong. 2024, Vol. 53 Issue 2, p15-22. 8p.
Publication Year :
2024

Abstract

Objective In order to avoid the problem of equipment blockage caused by sulfur deposition in the conventional natural gas wet oxidation desulfurization process, an iron-based hollow glass beads(HGB) catalyst modified by amino-phosphate difunctional group was developed for the heterogeneous catalytic oxidation regeneration of desulfurization rich liquid in the desulfurization- regeneration step-by-step scheme. Methods Infrared spectroscopy was used to characterize the structure of the catalyst. The effects of the ratio of silane coupling agent (KH-550), roasting temperature and FeCl2, 6H2. O dosage on the regeneration of desulfurization agent and desulfurization effect were investigated by static desulfurization experiments, and the reusability performance of the catalyst was explored. Results The amino-phosphoric acid modified iron-based HGB catalyst could make the desulfurization rich liquid to be effectively regenerated and remain stable in the acidic desulfurization liquid. Under the conditions of roasting temperature of 300 C for 6 h, mass ratio of HGB to KH-550 of 18 and mass ratio of HGB to FeCl2, 6H2O of 15, the iron-based HGB catalyst prepared had the best catalytic performance, and the desulfurization performance kept basically stable after 3 times of repeated regeneration of desulfurization solution. Infrared spectroscopy analysis showed that the catalyst structure remained intact. Conclusions The amino-phosphoric acid modified iron-based HGB catalyst has a good effect on desulfurization rich liquid regeneration in the field of natural gas wet oxidation desulfurization, which provides a new choice for desulfurization rich liquid regeneration at present. [ABSTRACT FROM AUTHOR]

Details

Language :
Chinese
ISSN :
10073426
Volume :
53
Issue :
2
Database :
Academic Search Index
Journal :
Chemical Engineering of Oil & Gas / Shi You Yu Tian Ran Qi Hua Gong
Publication Type :
Academic Journal
Accession number :
176789259
Full Text :
https://doi.org/10.3969/j.issn.1007-3426.2024.02.003