本人今年畢業(yè)，也在做畢業(yè)設(shè)計，深刻體會到了做畢業(yè)的不容易，為了縮短大家的論文制作時間，幫助大家更好的完成，我搜集了我一些朋友的畢業(yè)設(shè)計，今后還會陸續(xù)上傳。

摘要

甲醇是一種極重要的有機化工原料，也是一種燃料，是碳一化學(xué)的基礎(chǔ)產(chǎn)品，在國民經(jīng)濟中占有十分重要的地位。近年來，隨著甲醇下屬產(chǎn)品的開發(fā)，特別是甲醇燃料的推廣應(yīng)用，甲醇的需求大幅度上升。為了滿足經(jīng)濟發(fā)展對甲醇的需求，開展了此25萬t/a的甲醇項目。設(shè)計的主要內(nèi)容是進(jìn)行工藝論證，物料衡算和熱量衡算等。本設(shè)計本著符合國情、技術(shù)先進(jìn)和易得、經(jīng)濟、環(huán)保的原則，采用煤炭為原料；利用GSP氣化工藝造氣；NHD凈化工藝凈化合成氣體；低壓下利用列管均溫合成塔合成甲醇；三塔精餾工藝精制甲醇；此外嚴(yán)格控制三廢的排放，充分利用廢熱，降低能耗，保證人員安全與衛(wèi)生。

關(guān)鍵詞：甲醇、合成、精餾。

 

 

 

 

 

 

 

abstract
 Methanol is a kind of extremely important organic industrial chemicals, and a kind of fuel too, it is the basic products of the chemistry of carbon one. It is very important in national economy. In recent years, with the development of the products that are made from methanol, especially the popularization and application of the fuel of methanol, the demand for the methanol rises by a large margin. In order to satisfy economic development's demands for methanol , have launched the methanol project of this 200,000t/a. Main content that design to carry on craft prove, supplies weighing apparatus regard as with heat weighing apparatus charging etc The principle of the design in line with according with the national conditions, technologically advanced and apt, economy, protecting environment,. Coals is adopted as raw materials; the craft of GSP gasification is utilized to make water gas; the craft of NHD purification is utilized to purify the syngas; tubular average -temperature reaction is utilized to synthesize methanol keeping in low pressure; the rectification craft of three towers is utilized to rectify methanol; In addition control the discharge of the three wastes strictly, fully utilize used heat, reduce energy consumption, guarantee the personal security and hygiene.
Keyword: Methanol, synthesis, rectification.

 

 

 

目 錄

1總論

1.1概述

1.1.1甲醇生產(chǎn)工藝的發(fā)展

1.1.2甲醇生產(chǎn)原料

1.2 立題依據(jù)

1.2.1畢業(yè)設(shè)計選題

1.2.2 設(shè)計的主要參考資料

1.3本設(shè)計的主要原理

1.4設(shè)計的主要內(nèi)容

1.5設(shè)計建設(shè)規(guī)模

2工藝流程設(shè)計

2.1煤氣化技術(shù)路線的選擇 

2.2 凈化工藝方案的選擇

2.2.1 變換工序

2.2.2 脫硫脫碳工序

2.3 合成甲醇工藝的選擇

2.3.1甲醇合成塔的選擇

2.4精餾工藝的選擇

2.4.1精餾塔的選擇

3工藝計算

3.1甲醇生產(chǎn)的物料平衡計算

3.1.1精餾工段

3.1.2合成工段

3.1.3變換凈化工段

3.1.4氣化工段

3.2能量衡算 

3.2.1合成工段

4 主要設(shè)備的計算和選型

4.1水冷器E－402和E－403的工藝設(shè)計

4.2甲醇合成廠的主要設(shè)備一覽表

5三廢處理

5.1甲醇生產(chǎn)對環(huán)境的污染

5.1.1廢氣

5.1.2廢水

5.1.3廢渣

5.2處理方法

5.2.1廢氣處理

5.2.2廢水處理

5.2.3廢渣處理

6設(shè)計結(jié)果評價

7致 謝

8參考文獻(xiàn)