石油与天然气化工2023，Vol.52Issue(6)：1-8,8.DOI:10.3969/j.issn.1007-3426.2023.06.001
天然气固定床羰基硫水解技术现场试验及工业应用
Field test and industrial application of natural gas fixed bed carbonyl sulfur hydrolysis technology
摘要
Abstract
Objective The aim is to verify the stability of the fixed bed carbonyl sulfur(COS)hydrolysis process developed in the laboratory and catalyst in long-term operation under factory gas quality conditions,so as to provide basic data for process package development,industrial device design and application.Methods A 6 000 m3/d natural gas fixed-bed COS hydrolysis technology field test device was independently designed and constructed.The stability of COS hydrolysis rate of the test device for more than 16 000 h continuous operation was investigated by using the natural gas from the outlet of the wet desulfurization absorber of the factory as the test raw material.Results The experimental results showed that when the reaction temperature was greater than 70℃and 100℃respectively,and the volumetric space velocity was less than 6 000 h-1,the COS hydrolysis rate can be stably greater than 98%and 99%.The process and catalyst achievements were applied to the upgrading and renovation project of product gas quality in natural gas purification plants.The industrial unit operated stably for over 5 600 h,and the 72 h performance evaluation results of the unit showed that the hydrolysis reaction temperature was 100-120℃,the carbonyl sulfur mass concentration at the reactor outlet was less than 0.3 mg/m3,and the average hydrolysis rate reached 99.69%.Conclusions The natural gas fixed bed COS hydrolysis technology developed in the laboratory is stable and reliable,with high catalyst hydrolysis rate.It can provide a technical solution for selective desulfurization of natural gas with COS as the main organic sulfur component and high content in domestic sulfur-containing gas fields.关键词
固定床/羰基硫/催化剂/CT6-16/水解率/现场试验Key words
fixed bed/carbonyl sulfur(COS)/catalyst/CT6-16/hydrolysis rate/field test引用本文复制引用
刘宗社,熊钢,周孝胜,温崇荣,刘其松,廖铁,赵书梅..天然气固定床羰基硫水解技术现场试验及工业应用[J].石油与天然气化工,2023,52(6):1-8,8.基金项目
中国石油天然气集团有限公司科学研究与技术开发项目"含硫天然气硫磺回收及氧化吸收尾气处理关键技术研究"(2021 DJ2603) （2021 DJ2603）
中国石油西南油气田公司科技计划项目"低密度高比表面积改性氧化铝制备技术研究"(20220306-01) （20220306-01）
