煤制替代天然气甲烷化反应器研究与开发

发布时间：2018-01-08 18:06

本文关键词：煤制替代天然气甲烷化反应器研究与开发　出处：《天然气化工(C1化学与化工)》2017年05期 　论文类型：期刊论文

【摘要】：甲烷化反应器是煤制SNG路线关键设备之一。通过深入分析甲烷化反应特点,发现三级串并联工艺能够显著降低反应器床层温升,建立了拟均相反应器数学模型,优化了工艺条件。研究结果表明,优选的合成气进口温度563.15K、压力3MPa;原料气中CH_4含量越高,热点值越低;原料气流量小于GHSV=24090h~(-1)时,床层温度都能到达热点值904K。基于以上研究,提出了绝热和等温两种微反应通道甲烷化反应器,该反应器能够克服传统甲烷化反应器中存在传热、传质效率低、压降大、使用寿命短等问题,且无明显放大效应,能够满足反应器不断大型化的发展需求,具有一定的先进性。
[Abstract]:Methanation reactor is one of the key equipment of coal SNG line. Through in-depth analysis of the methanation reaction characteristics, found three stage parallel process can significantly reduce the reactor bed temperature rise, a quasi homogeneous mathematical model of the reactor, the process conditions are optimized. The results show that the synthetic gas inlet temperature 563.15K, optimization the pressure of 3MPa; the higher the content of CH_4 in the feed gas, the lower the value of hot; raw gas flow rate is less than GHSV=24090h~ (-1), bed temperature can reach the focus value of 904K. based on the above, puts forward two kinds of adiabatic and isothermal micro channel methanation reactor, the reactor can overcome the shortcomings of a traditional heat transfer alkylation reactor, mass transfer efficiency and low voltage, short service life and so on, and there is no obvious amplification effect, can meet the requirements of the development of large-scale continuous reactor, is advanced.

【作者单位】：中国石化工程建设有限公司;中国石油化工集团公司;
【分类号】：TE665.3
【正文快照】： 目前国内天然气供需缺口巨大,且随着需求的快速增加,缺口仍将进一步加大。“富煤、贫油、少气”的能源结构,决定了我国对煤炭资源进行清洁、高效利用的发展道路。发展煤制SNG为缓解国内天然气资源短缺的现状,实现CO2减排、保护环境均具有重要意义[1,2]。因此,煤制SNG技术已成

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