中润公司煤化工产业绿色工艺技术及循环经济模式研究

发布时间：2018-06-11 23:22

本文选题：中润公司 + 煤化工产业　；参考：《北京化工大学》2015年硕士论文

【摘要】：当前,国内焦化产业虽然取得了长足发展,独立焦化企业所占比重焦化产业份额虽然越来越重,但是,在通过对国内焦化行业科技进步调研及多年的生产管理分析来看,行业内仍存在产业链、废气、废水、废渣等工艺“三废”利用等方面的问题,因此,针对煤化工产业存在的共性问题,开展绿色工艺技术改造具有重要意义。本文紧密结合开滦能源股份有限公司中润公司的实际,从干熄焦、焦炉煤气制甲醇、苯加氢项目之间有机耦合和污水综合回用、弛放气综合利用、蒸汽优化利用、焦化废渣回用、煤气净化回收等方面进行绿色工艺技术改造,具体包括如下6个方面：从循环经济产业链构建方面,开发了干熄焦与粗苯加氢精制项目,并实现了项目涉及的蒸汽、电力、废气、废水与焦化工艺的链接耦合；针对甲醇弛放气利用,开发了回炉综合回用技术,改善了炼焦加热过程,提高了甲醇产量；针对焦化废水利用,开发了污水综合回用技术,污水经处理后补入生产循环水系统,解决了焦化废水处理难问题；针对废渣利用及配煤系统问题,实施了单种煤预粉碎与废渣型煤炼焦改造,解决了焦化产业废渣利用问题；针对煤气回收净化工艺改造,改变单塔运行洗苯工艺,改善了煤气洗苯效果,解决了苯加氢含硫干气排放问题；针对蒸汽利用问题,改造蒸汽分压缸系统,实现蒸汽梯级利用。通过相关的技术开发工作,中润公司实现了焦化产业链条的再延伸,构建了不同能源资源之间的循环经济产业链,圆满解决了本企业废气、废水、废渣的综合利用。本研究结果在同类型焦化企业具有推广应用价值。
[Abstract]:At present, although the domestic coking industry has made considerable progress, the proportion of independent coking enterprises in the coking industry has become more and more heavy. However, through the investigation of the scientific and technological progress of the domestic coking industry and the analysis of the production management for many years, There are still some problems in the utilization of industrial chain, waste gas, waste water, waste residue and so on. Therefore, it is of great significance to carry out green technology reform in view of the common problems existing in coal chemical industry. This paper closely combines with the reality of Zhongrun Company of Kailuan Energy Co., Ltd., from coke quenching, coke oven gas to methanol, organic coupling between benzene hydrogenation projects and comprehensive reuse of sewage, comprehensive utilization of relaxation gas and optimum utilization of steam, In the aspects of recycling of coking waste residue and gas purification and recovery, the green process is reformed, including the following six aspects: from the aspect of construction of industry chain of circular economy, the project of dry quenching coke and crude benzene hydrofining is developed. The coupling of steam, electric power, waste gas, waste water and coking process is realized, and the comprehensive reuse technology is developed to improve the coking heating process and methanol output. In view of the utilization of coking plant wastewater, the comprehensive reuse technology of sewage is developed, the sewage is reused into the production circulating water system after treatment, the problem of treating coking plant wastewater is solved, and the problems of waste residue utilization and coal blending system are solved. In order to solve the problem of waste residue utilization in coking industry, the single coal pre-crushing and coking modification of waste coal briquettes were carried out, and the gas washing effect was improved by changing the single tower running benzene washing process and reforming the gas recovery and purification process. To solve the problem of benzene hydrogenation sulfur containing dry gas emission and steam utilization, the steam separation cylinder system was reformed to realize steam cascade utilization. Through the relevant technical development work, Zhongrun Company has realized the extension of the coking industry chain, constructed the circular economic industrial chain between different energy resources, and solved the comprehensive utilization of the waste gas, wastewater and waste residue of the enterprise. The results of this study have the value of popularization and application in the same type of coking enterprises.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ520;X784

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