低温甲醇洗毕业论文

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1、 毕业论文 低温甲醇洗 低温甲醇洗在煤气净化中的应用 论文摘要： 低温甲醇洗是 50 年代初德国林德公司和鲁奇公司联合开发的一种气体净化工艺。该工艺以冷甲醇为吸收溶剂，利用甲醇在低温下对酸性气体溶解度极大的优良特性，脱除原料气中的酸性气体。该工艺气体净化度高，选择性好，气体的脱硫和脱碳可在同一个塔内分段、选择性地进行。低温甲醇洗工艺技术成熟，在工业上有着很好的应用业绩，被广泛 应用于国内外合成氨、合成甲醇和其他羰基合成、城市煤气、工业制氢和天然气脱硫等气体净化装置中。在国内以煤、渣油为原料建成的大型合成氨装置中也大都采用这一技术。 关键词 低温甲醇洗；气体净化；酸性气体 The applica

2、tion of low-temperature methanol wash Low in gas purification application Abstract： Low-temperature methanol wash was a gas purification technology codeveloped by Lynd and Lurgi Co. in Germany in 1950s. In the process, cold methyl alcohol which has great solubility to acidic gas at low temperatures

3、was used as absorbent to remove acidic gas in the raw gas. The process is with high gas purification and selectivity, by which the sulfur and carbon removal can be selectively carried out in different sections of the same column. The technology of low temperature methanol wash is mature and has very

4、 good application achievements in industry, which was widely employed in the gas purification processes such as the synthesis of ammonia, methanol and other carbonyls, town gas, industrial hydrogen production and sulfur removal from natural gas. Most of the domestic large scale ammonia synthesis devices also used this technique. Keywords: low-temperature methanol wash； gas purification； acidic gas