對(duì)已內(nèi)酰胺二步重排的研究

論文編號(hào):HG227  論文字?jǐn)?shù):17123,頁(yè)數(shù):30

摘要
 已內(nèi)酰胺生產(chǎn)是一個(gè)相當(dāng)復(fù)雜的工藝過(guò)程，環(huán)已酮肟的重排反應(yīng)是已內(nèi)酰胺生產(chǎn)中一個(gè)重要的過(guò)程，環(huán)已酮肟和發(fā)煙硫酸反應(yīng)生成已內(nèi)酰胺硫酸酯即貝克曼分子重排是已內(nèi)酰胺生產(chǎn)中的一個(gè)重要環(huán)節(jié)，其反應(yīng)劇烈，副反應(yīng)多，對(duì)已內(nèi)酰胺生產(chǎn)的產(chǎn)品質(zhì)量和消耗有很大影響。
 本文對(duì)已內(nèi)酰胺重排反應(yīng)的影響因素進(jìn)行了重點(diǎn)分析，在原有一步重排方案的基礎(chǔ)上，制定了二步重排的試驗(yàn)方案，并對(duì)影響重排反應(yīng)的各種因素進(jìn)行了定量的分析。將實(shí)驗(yàn)結(jié)果應(yīng)用于實(shí)際生產(chǎn)，此改造已通過(guò)了有關(guān)部門的考核驗(yàn)收。通過(guò)對(duì)一步重排和二步重排的實(shí)際運(yùn)行效果的統(tǒng)計(jì)對(duì)比和對(duì)相關(guān)文獻(xiàn)的檢索，表明該項(xiàng)目填補(bǔ)了國(guó)內(nèi)的空白。
關(guān)鍵詞：已內(nèi)酰胺，貝克曼重排，混合器，摩爾比，停留時(shí)間

Abstract
 Caprolactam process is very complicated, Cyclohexanone oxime rearrangement reaction is the key process in Caprolactam production , Cyclohexanone oxime and oleum are reacted to produce Caprolactam, i.e. Beckmann rearrangement is the key step in the process. The reaction is very intensive and produces many by-products, which will impact a lot on the final product quality and production consumption.
 The thesis focuses on the rearrangement impact factors analysis. Two stage rearrangement test scheme was worked out and executed on the basis of the original one stage rearrangement test scheme which was provided by DSM. The impact factors were measurable after the test. which provides conditions to apply the research result. The project has passed the examination. The statistics with respect to one stage and two stages rearrangement have been done. This process development will be the first time in China based on the literature searches.
Keywords: Caprolactam, Beckmann rearrangement, mixer, mol ratio, residence time
目錄
摘要 I
Abstract II
第1章  緒論 1
1.1  產(chǎn)品介紹 1
1.2  主要原料及產(chǎn)品的物性數(shù)據(jù) 1
1.3  生產(chǎn)原理 3
1.4  已內(nèi)酰胺新工藝的開發(fā) 5
1.5  已內(nèi)酰胺生產(chǎn)技術(shù)的改進(jìn) 6
1.6  國(guó)內(nèi)典型生產(chǎn)工藝過(guò)程 6
1.7  存在的問(wèn)題及選題依據(jù) 8
第2章  已內(nèi)酰胺重排化學(xué)原理及工藝介紹 10
2.1  化學(xué)原理 10
2.2  工藝簡(jiǎn)介(一步重排) 10
2.3  已內(nèi)酰胺重排反應(yīng)影響因素分析 11
第3章  已內(nèi)酰胺二步重排反應(yīng)的研究與開發(fā) 13
3.1  二步重排試驗(yàn)方案 13
3.2  二步重排試驗(yàn)結(jié)果 16
3.3  二步重排新工藝的開發(fā) 21
3.4  混合器的改變對(duì)重排反應(yīng)的影響 22
第4章  重排效益比較 23
第5章  結(jié)論 25
參考文獻(xiàn) 26
致謝 27