天然气络合铁脱硫装置设计与应用

发布时间：2019-04-13 16:40

【摘要】：本文针对川科1井含硫天然气的处理工艺进行了研究,通过研究分析该工程采用常温集输工艺流程,二级加热、二级节流降压流程,针对具体情况,对脱硫及硫磺回收工艺方案进行了优选比较,经比较发现络合铁工艺技术关键设备、药剂完全国产化,溶液可循环再生,对环境友好,投资、能耗及运行费用较低。最终决定该项目采用络合铁脱硫工艺。根据以往的投产经验和本工程现状对该项目中的天然气络合铁脱硫装置分别在吸收过程、再生过程、过滤设备和溶液冷却系统方面进行了优化,同时考虑了络合铁溶液的腐蚀问题,最后对工艺装置进行了模块化设计。对投产过程中遇到的问题进行了总结,并提出了相应的应对和修改措施。其中工艺设计方面分别对硫堵现象、硫醇臭味过大、系统富余量偏大、一级吸收塔吸收和排污方式存在的问题进行了总结和改正;设备设计和选型方面分别对再生槽、硫泡沫槽、分离槽、气浮罗茨鼓风机和真空转鼓过滤机、搅拌器和泵类等存在的问题进行了总结和改正。
[Abstract]:In this paper, the processing technology of sulfur-bearing natural gas in well Chuanke 1 is studied. Through the research and analysis, the process of gathering and transportation at room temperature, two-stage heating, two-stage throttling and depressurization are adopted in this project. The process scheme of desulphurization and sulfur recovery was optimized and compared. It was found that the key equipment of complexing iron process technology was completely home-made, the solution could be recycled, it was friendly to environment, investment, energy consumption and operation cost was low. The final decision of the project is iron complexing desulphurization process. According to the previous experience in production and the present situation of the project, the absorption process, regeneration process, filtration equipment and solution cooling system of the natural gas complexing iron desulfurization unit in this project were optimized, respectively. At the same time, the corrosion of complex iron solution is considered. Finally, the modular design of the process device is carried out. The problems encountered in the process of commissioning are summarized, and the corresponding countermeasures and modification measures are put forward. In the aspect of process design, the problems of sulfur blocking phenomenon, excessive odor of mercaptan, large surplus of the system, absorption of first-order absorption tower and sewage discharge mode are summarized and corrected. The problems of regenerating tank, sulfur foam tank, separation tank, air-floating Roots blower and vacuum drum filter, agitator and pump are summarized and corrected in the aspects of equipment design and selection.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE96

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