45萬噸年甲醇精餾系統(tǒng)畢業(yè)設(shè)計(jì)(已修改)
2025-09-06 17:20 本頁面
【正文】 畢業(yè)設(shè)計(jì) 題目 200kt/a 合成氨轉(zhuǎn)化工段工藝設(shè)計(jì) 摘要 甲醇最早由木材和木質(zhì)素干餾制的，故俗稱木醇，這是最簡單的飽和脂肪組醇類的代表物。近年來，世界甲醇的生產(chǎn)能力發(fā)展速度較快。甲醇工業(yè)的迅速發(fā)展，是由于甲醇是多種有機(jī)產(chǎn)品的基本原料和重要的溶劑，廣泛用于有機(jī)合成、染料、醫(yī)藥、涂料和國防等工業(yè)。由甲醇轉(zhuǎn)化為汽油方法的研究成果，從而開辟了由煤轉(zhuǎn)換為汽車燃料的途徑。近年來碳一化學(xué)工業(yè)的發(fā)展，甲醇制乙醇、乙烯、乙二醇、甲苯、二甲苯、醋酸乙烯、醋酐、甲酸甲酯和氧分解性能好的甲醇樹脂等產(chǎn) 品，正在研究開發(fā)和工業(yè)化中。甲醇化工已成為化學(xué)工業(yè)中一個(gè)重要的領(lǐng)域。 本設(shè)計(jì)選擇了以 45萬 t/a甲醇精餾的產(chǎn)量作為生產(chǎn)計(jì)算與設(shè)計(jì)的任 務(wù)，參考了河南永城永煤集團(tuán)龍宇煤化工甲醇廠甲醇精餾的工藝，本設(shè)計(jì)從工藝角度對其生產(chǎn)過程和主要設(shè)備進(jìn) 行了物料衡算、塔設(shè)備簡捷法計(jì)算、熱量衡算、換熱器設(shè)計(jì)等工藝計(jì)算。 關(guān)鍵詞 ：甲醇，精餾，物料衡算，熱量衡算 Abstrac In the paper Methanol is made of wood and lignin carbonization, the earliest is monly known as wood alcohol, this is the most simple saturated fat group representatives of alcohol content. In recent years, the world of methanol production capacity development faster. The rapid development of the methanol industry, because methanol is a variety of basic raw material and important solvent of anic products, widely used in anic synthesis, dye, medicine, coating and defense industries. Method by methanol into gasoline research achievements, thus opened up by the way of coal into a car fuel. In recent years, the development of c1 chemical industry, methanol to ethanol, ethylene glycol, toluene, xylene, vinyl acetate, acetic anhydride, methyl formate and oxygen resin products such as methanol deposition good performance, is in research, development and industrialization. Methanol chemical industry has bee an important field in the chemical industry. This design chose to the output of 450000 t/a methanol distillation as production calculation and design tasks, refer to the city always in henan wing coal group, long yu chemical methanol factory of methanol distillation process, the design from the perspective of technology, the production process and main equipment for the material balance, the tower equipment simple method of calculation, heat balance calculation, heat exchanger design process. Keywords: methanol, distillation, material balance, heat balance 目 錄 1 總論 1 概況 1 甲醇的用途 1 甲醇精餾工藝技術(shù)比較 1 甲醇精餾工藝的概況 4 精餾的目的和原理和精餾塔的操作和調(diào)節(jié) 5 粗甲醇的組成與精制要求 5 工藝原理 7 影響因素 9 精餾塔的產(chǎn)品質(zhì)量控制和調(diào)節(jié) 11 甲醇的主要技術(shù)規(guī)格 11 甲醇的一般性質(zhì) 11 甲醇的沸點(diǎn)和蒸汽壓 13 甲醇 水系統(tǒng)的性質(zhì) 13 甲醇精餾工藝流程說 明 14 預(yù)精餾系統(tǒng) 14 加壓精餾系統(tǒng) 15 常壓精餾系統(tǒng) 15 2 甲醇精餾生產(chǎn)工藝設(shè)計(jì)及計(jì)算 16 計(jì)算參數(shù) 16 預(yù)精餾塔工藝計(jì)算
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