柴油加氢精制工段含硫废气的深度脱硫及资源化利用  

Deep Desulfurization and Resource Utilization of Sulfur-containing Waste Gas from Diesel Hydrofining Section

作　　者：俞沛杰 钮舒静 盛雨冬 张佳强 陈艳波 李正辉[1] YU Peijie;NIU Shujing;SHENG Yudong;ZHANG Jiaqiang;CHEN Yanbo;LI Zhenghui(School of Materials and Chemical Engineering,Ningbo University of Technology,Ningbo,Zhejiang,315211,China)

机构地区：[1]宁波工程学院材料与化学工程学院,浙江宁波315211

出　　处：《宁波工程学院学报》2020年第1期19-25,共7页Journal of Ningbo University of Technology

摘　　要：本研究旨在开发含硫化氢废气的深度脱硫及资源化利用工艺。以中石化镇海炼化柴油加氢精制工段所排放的废气为原料,经工艺论证,设计一条以胺法提纯H2S气体,后与甲醇发生平行反应生成甲硫醇、甲硫醚的工艺路线;并运用Aspen软件对全流程进行模拟及优化,运用中间再沸器技术、萃取精馏技术降低能耗及成本,利用废气中二氧化碳制甲醇,实现节能减排。该工艺处理后废气含硫小于0.2%,且可根据市场需求,调节甲硫醇、甲硫醚的产量,提高了产品的抗风险能力。This research is intended to develop a process of deep desulfurization and resource utilization of hydrogen sulfide containing waste gas.Waste gas,taking the waste gas discharged from the diesel hydrofining section of Sinopec Zhenhai Refining and Chemical Company,was used as raw material.In practical theory demonstration,a reasonable route was designed,in which,sulfone amine solution was adopted for deep desulfurization,and H2S purified from the waste gas reacted with methanol to product methyl mercaptan and dimethyl sulfide parallelly.Aspen plus was used to simulate and optimize the whole process.Intermediate reboiling rectification and extractive distillation technologies were used to reduce energy consumption and cost.Carbon dioxide in waste gas was used to produce methanol.After the process treatment,the sulfur content of the waste gas was less than 0.2%,and the production of methyl mercaptan and dimethyl sulfide could be adjusted according to the market demand.This could greatly improve the anti-risk ability of the product.

关 键 词：资源化利用 脱硫 硫化氢 甲硫醇 甲硫醚 

分 类 号：O643.38[理学—物理化学]