【正文】 ................................................................22 第三章 化工工藝 ........................................................................................ 23 工藝概述 ..........................................................................................................................23 原料路線選擇 從丙烯到碳酸丙烯酯 .................................................................................23 原料的選擇 ................................................................................................................23 工藝介紹 ....................................................................................................................30 原料預(yù)處理流程設(shè)計(jì) ..................................................................................................30 合成段工藝流程 ...........................................................................................................31 經(jīng)濟(jì)性評價(jià) ................................................................................................................32 精餾工藝選擇及論證 .........................................................................................................32 碳酸二甲酯合成部分 ..................................................................................................32 精餾方法 ....................................................................................................................35 碳酸 二甲酯的分離 ......................................................................................................36 生產(chǎn)流程敘述 ...................................................................................................................37 合成流程的模擬 .........................................................................................................37 分離 .................................................................................................................................54 模擬結(jié)果（見流程說明） ...........................................................................................54 流程特色 ....................................................................................................................55 三廢治理 ..........................................................................................................................55 三廢的產(chǎn)生 ................................................................................................................55 三廢的組成分析 .........................................................................................................56 三廢的處理方法 .........................................................................................................57 物料及能量衡算 ................................................................................................................58 工藝設(shè)備一覽表（詳見附錄 6） ........................................................................................59 機(jī)構(gòu)及人員 .......................................................................................................................59 組織結(jié)構(gòu) ....................................................................................................................59 職能 ...........................................................................................................................59 人員編制 ....................................................................................................................60 第四章 空壓站 ............................................................................................. 62 概述 .................................................................................................................................62 全廠壓縮空氣狀況 ............................................................................................................62 氮站 .................................................................................................................................62 概述 ...........................................................................................................................62 全廠氮?dú)馐褂脿顩r ......................................................................................................63 第五章 自動(dòng)控制 ........................................................................................ 64 全廠自控水平和主要控制方案 ...........................................................................................64 范圍 ...........................................................................................................................64 自控水平 ....................................................................................................................64 主要控制方案 .............................................................................................................64 通訊網(wǎng)絡(luò) ....................................................................................................................65 安全和保護(hù)措施 .........................................................................................................65 儀表選型的確定 ................................................................................................................65 選型原則 ....................................................................................................................65 控制室監(jiān)控系統(tǒng) .........................................................................................................66 現(xiàn)場儀表 ....................................................................................................................66 動(dòng)力供應(yīng) ..........................................................................................................................68 “三井化學(xué)杯”化工設(shè)計(jì)大賽 III 儀表電源 ....................................................................................................................68 儀表氣源 ....................................................................................................................68 泵的選型 .....................................