毕业设计说明书作者：学号：院系：专业：题目：年产12万吨食用酒精工厂的设计设计重点:双酶法液糖化指导者：评阅者：东北电力大学本科毕业设计说明书（论文）2012年6月吉林1摘要摘要本设计为年产12万吨酒精工厂的设计。依据要求选择以玉米为原料，耐高温α-淀粉酶作为液化酶；β-淀粉酶作为糖化酶；安琪牌高温酒精活性干酵母作为酵母菌。在工艺上的选择有双酶法液糖化工艺，目的是将淀粉变成可发酵性糖，经过细胞内酒化酶的作用生成酒精与CO2,再通过细胞膜将这些产物排出体外。所需的工艺[2]指标有加水比1：3.5，拌料罐内pH值6.5，液化温度90～100℃，糖化醪pH值4.0～4.5，糖化温度60～65℃，糖化时间1.5h等。五塔压差蒸馏工艺，分子筛工艺，通过物料衡算、设备选型计算、水电气耗的计算等合理优化设计生产工艺过程。关键词：酒精玉米粉碎双酶法液糖化发酵蒸馏东北电力大学本科毕业设计说明书（论文）AbstractThedesignforthedesignofanannualoutputof120,000tonsofethanolplants.Accordingtotheaskedtoselectfromcorn,thermostablea-amylaseasamylase;β-amylase,glucoamylase;Angelbrandhightemperaturealcoholactivedryyeastastheyeast.Choiceinthetechnologysolutionwithdualenzymaticsaccharificationprocess,thestarchintofermentablesugar,alcoholandCO2,afterliquorroleofenzymeswithinthecellsgeneratedandexcretedthroughthecellmembrane.Addwaterrequiredforprocessindicatorsthan1:3.5thespicestankpHof6.5,theliquefactiontemperatureof90to100°C,mashpHof4.0to4.5,saccharificationtemperatureof60~65°Cfor1.5hsaccharificationtime.Thefive-towerdifferentialpressuredistillationprocess,themolecularsieveprocess,bymaterialbalance,equipmentselection,calculation,water,electricpowerconsumptioncalculationoptimizeddesignandproductionprocess.Keywords：AlcoholCorncrushedDualenzymaticliquidglycosylatedFermentDistillation东北电力大学本科毕业设计说明书（论文）I目录目录摘要............................................................................................................................IAbstract..........................................................................................................................II目录..........................................................................................................................III第1章绪论..............................................................................................................-5-1.1酒精的主要性质..........................................................................................-5-1.2酒精的应用..................................................................................................-5-1.3我国酒精工业的发展史..............................................................................-5-1.4世界酒精工业的发展史..............................................................................-6-1.5酒精工业的发展趋势..................................................................................-7-第2章设计概论......................................................................................................-8-2.1设计的目的..................................................................................................-8-2.2设计的任务..................................................................................................-8-2.3设计的指导思想..........................................................................................-8-2.4废水处理......................................................................................................-9-2.4.1酒精废水.....................
