年产8万吨丙烯酸工艺设计.docx

年产80000吨丙烯酸生产工艺设计 摘 要 本次设计是采用丙烯直接氧化法生产丙烯酸，又称丙烯二步氧化法。丙烯在第一个反应器生成丙烯醛，在第二个反应器生成产物丙烯酸，然后送入精制，其间需加入催化剂。整个工艺过程大致分为氧化工段和精制工段两个部分，氧化部分主要设备有第一氧化器和第二氧化器，精制部分主要有吸收塔，汽提塔，脱水塔和脱重塔，还有附属设备冷却器等，以此来实现丙烯酸的生产及精制。 本次设计主要包括生产方案选择、工艺流程图及描述、物料衡算、热量衡算、设备选型、车间布置和环境保护等。并绘制了PFD图、PID图、车间布置图和主要设备装配图。 关键词：丙烯酸、二步氧化法、氧化工段、精制工段、工艺设计 Process Design of Acrylic Acid with Annual Output of 80,000 Tons Abstract The design is to use propylene direct oxidation method to produce acrylic acid, also known as propylene two-step oxidation method. Acrolein is produced in the first reactor, then acrylic acid is produced in the second reactor, and the product is fed into the refining process, during which a catalyst is added. The whole process is roughly divided into two parts: the oxidation section and the refining section. The main equipment of the oxidation section is the first oxidizer and the second oxidizer, and the refined part is the absorption tower, stripper tower, dehydrating tower and deweighting tower, as well as the auxiliary equipment coolers and so on. To achieve the production and refining of acrylic acid. The design mainly includes the selection of production plan, process flow chart and description, material balance, heat balance, equipment selection, workshop layout and environmental protection. The PFD drawing, PID drawing, workshop layout drawing and main equipment assembly drawing were drawn. Keywords: Acrylic acid, two-step oxidation, oxidation section, refining section. 目 录 TOC \o "1-3" \h \u 1前言 1 1.1产品简介 1 1.2产品的应用 1 1.3丙烯酸的市场概况 1 1.4丙烯酸的生产工艺 2 2丙烯酸的生产方案 4 2.1生产方案的选择 4 2.2产品原料的规格 4 2.3工艺流程图 4 2.4工艺流程叙述 5 2.5可行性分析 6 3物料衡算 7 3.1物性数据 7 3.1.1基础数据 7 3.1.2配方基本信息 7 3.2基准时间 8 3.3物性计算 8 3.3.1第一氧化器物料衡算 8 3.3.2冷却器的物料衡算 9 3.3.3第二氧化器物料衡算 10 3.4原料消耗综合表 11 3.5精制物料衡算 11 3.5.1吸收塔的物料衡算 11 3.5.2汽提塔的物料衡算 14 3.5.3脱水塔的物料衡算 17 3.5.4脱重塔的物料衡算 19 4热量衡算 21 4.1基础数据 21 4.1.1计算基准 21 4.1.2热量衡算方程式 21 4.2热量衡算式中计算方法 21 4.3氧化工