1、 學校代碼 10126 學號 00628072 分 類 號 密級 本科畢業論文(設計)低溫甲醇洗工藝原理與流程簡述學院、系 化學化工學院 專業名稱 化學工程與工藝 年 級 2006 級 學生姓名 指導教師 2010年 5月28日低溫甲醇洗工藝原理與流程簡述 摘要低溫甲醇洗是50年代初德國林德公司和魯奇公司聯合開發的一種氣體凈化工藝。該工藝以冷甲醇為吸收溶劑，利用甲醇在低溫下對酸性氣體溶解度極大的優良特性，脫除原料氣中的酸性氣體。該工藝氣體凈化度高，選擇性好，氣體的脫硫和脫碳可在同一個塔內分段、選擇性地進行。低溫甲醇洗工藝技術成熟，在工業上有著很好的應用業績，被廣泛應用于國內外合成氨、合成甲醇和

2、其他羰基合成、城市煤氣、工業制氫和天然氣脫硫等氣體凈化裝置中。在國內以煤、渣油為原料建成的大型合成氨裝置中也大都采用這一技術。關鍵詞 低溫甲醇洗；氣體凈化；酸性氣體fundamentals and process of low-temperature methanol wash author: ma bai-tong tutor: yang xu-zhuangabstract：low-temperature methanol wash was a gas purification technology codeveloped by lynd and lurgi co. in germany i

3、n 1950s. in the process, cold methyl alcohol which has great solubility to acidic gas at low temperatures 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 dif

4、ferent sections of the same column. the technology of low temperature methanol wash is mature and has very 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 hydro

5、gen 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目錄1.緒論31.1煤炭資源與煤化工31.1.1煤炭資源31.1.2煤化工31.2煤的氣化與合成氨制尿素31.2.1煤炭氣化31.2.2合成氨制尿素32.凈化車間與低溫甲醇洗工段簡介42.1凈化車間簡介42.2低溫甲醇洗工段簡介43.甲醇的性質53.1 物理化學屬性53.2 用途63.3 安全機理63.4 毒性和防護64. 低溫甲醇洗的原理64.1低溫甲醇洗的理論基礎64.1.1 拉烏爾定律64.1.2 亨利定律74.2 低溫甲醇洗的基本原理84.2.1多種氣體在甲醇溶液中溶解度的比較84.2.2 硫化氫、二氧化碳的解吸95.低溫甲醇洗的工藝原理及流程95.1低溫甲醇洗工藝流程簡介95.1.1林德低溫甲醇洗工藝流程95.1.2魯奇低溫甲醇洗工藝流程105.1.3大連理工大學低溫甲醇洗