浮石銀催化劑甲醇氧化生產(chǎn)甲醛工藝本科畢業(yè)設(shè)計(jì)論文

1、摘要本設(shè)計(jì)以96.5%甲醇為原料年產(chǎn)2.5萬噸37%甲醛水溶液的生產(chǎn)工藝初步設(shè)計(jì)。對甲醛的性質(zhì)和發(fā)展階段等相關(guān)信息做了簡要的闡述。根據(jù)設(shè)計(jì)要求對甲醛生產(chǎn)工藝流程進(jìn)行了選擇與論證，對整個(gè)甲醛生產(chǎn)過程進(jìn)行了物料與能量的衡算，對主要設(shè)備和管道進(jìn)行了設(shè)計(jì)及選型，同時(shí)對以浮石銀催化劑甲醛生產(chǎn)工藝的流程、安全生產(chǎn)與“三廢”治理作了相關(guān)討論和介紹。同時(shí)也在甲醛生產(chǎn)工藝方面做出了改進(jìn)，在第一吸收塔后設(shè)立兩個(gè)冷凝器，用以能量回收循環(huán)利用。本次設(shè)計(jì)根據(jù)我國

2、甲醛工業(yè)的發(fā)展現(xiàn)狀和甲醛生產(chǎn)的成熟工藝選擇了以呼和浩特市地理、氣候等條件建廠，采取浮石銀催化劑甲醇氧化生產(chǎn)甲醛工藝。采用高濃度的甲醇作為原料以提高甲醇的轉(zhuǎn)化率和甲醛的選擇性、收率等。本次設(shè)計(jì)為初步設(shè)計(jì)。關(guān)鍵詞：甲醛；甲醇；氧化；浮石銀目錄引言................................................................1第一章甲醛生產(chǎn)簡介.........................

3、........................31.1甲醛的性質(zhì)和用途............................................31.2甲醛的生產(chǎn)工藝簡介..........................................31.2.1甲縮醛氧化法..........................................31.2.2二甲醚氧化法...................

4、.......................41.2.3低碳烷烴直接氧化法....................................41.2.4銀催化劑法............................................41.2.5鐵鉬催化劑法..........................................41.3甲醛主要生產(chǎn)工藝的比較與選擇...................

5、.............41.3.1生產(chǎn)工藝比較..........................................41.3.2銀催化法生產(chǎn)甲醛......................................51.4銀法甲醛工藝路線改進(jìn)........................................8第二章物料衡算.......................................

6、.............102.1主要工藝指標(biāo)...............................................102.2甲醛、甲醇物料衡算.........................................102.2.1產(chǎn)品產(chǎn)量及其組成.....................................112.2.2原料投入量..............................

7、.............122.2.3尾氣中各組分含量的計(jì)算...............................122.2.4校核.................................................132.2.5主要設(shè)備物料衡算.....................................14第三章熱量衡算.......................................

8、.............183.1物性參數(shù)及計(jì)算公式.........................................183.2主要設(shè)備熱量衡算...........................................18第四章主要非定型設(shè)備的計(jì)算及選型..................................244.1蒸發(fā)器....................................

9、.................244.2過熱阻火器.................................................244.3氧化爐.....................................................254.3.1廢熱段...............................................254.3.2急冷段................