CN103103218A - 酒糟碱水解糖液及工艺 - Google Patents

酒糟碱水解糖液及工艺 Download PDF

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Publication number
CN103103218A
CN103103218A CN2011103545497A CN201110354549A CN103103218A CN 103103218 A CN103103218 A CN 103103218A CN 2011103545497 A CN2011103545497 A CN 2011103545497A CN 201110354549 A CN201110354549 A CN 201110354549A CN 103103218 A CN103103218 A CN 103103218A
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vinasse
grains
liquid glucose
acid
basic hydrolysis
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CN103103218B (zh
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陈彦
苏蓉蓉
林晓艳
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Southwest Jiaotong University
Southwest University of Science and Technology
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Southwest University of Science and Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel

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  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)

Abstract

发明涉及酒糟碱水解糖液及制备工艺，采用酒糟等原料，经原料调配、微波加热水解、液渣分离、浓缩、pH调节等制得酒糟碱水解糖液。发明涉及碱催化、微波加热、减压蒸馏等工艺，副产物水解渣可用作吸附材料，冷凝液与洗液复用，制备的酒糟碱水解糖液含有一定量矿物质与盐，可直接用于发酵制取燃料乙醇。

Description

酒糟碱水解糖液及工艺
技术领域
发明涉及酒糟碱水解糖液及工艺。
背景技术
随着世界工业化的发展，能源需求的急剧增加与短缺矛盾日益加剧，寻找可再生性的替代能源，已经成为维持人类社会可持续发展的紧迫任务。中国是酒类生产和消费大国，在大规模白酒生产的同时，也产生了大量废弃物生物质——酒糟，对废弃酒糟的综合利用和专利主要集中于饲料、农肥、制取甘油、培养食用菌、提取复合氨基酸及微量元素等方面；以酒糟碱催化水解酒糟所含纤维素、半纤维素等获得的糖用于发酵制备燃料乙醇等，既可充分利用酒糟有用物质，又促进生物质能源的开发，故具有一定的现实意义与价值。
发明内容
发明目的在于结合我国白酒生产酒糟废弃物的减量化、资源化利用及缓解能源压力实际，提供可用于发酵制取燃料乙醇的酒糟碱水解糖液及工艺。
发明的目的以如下方式实现：
以酒糟为原料，不经干燥，添加水、碱，经微波加热、固液分离、浓缩、pH调节等处理制得。
原料调配
选用固态发酵白酒生产的丢糟——酒糟副产物，根据酒糟含水量添加水与氢氧化钠、氢氧化钾、碳酸钠、碳酸氢钠、氨水等碱催化剂中的一种，并使碱浓度约1-10%(w/w)。
微波加热
在具密闭、冷凝回流及搅拌功能的反应釜中，采用微波加热，控制在50℃-160℃下约0.5-3h。
冷却
将经微波碱水解的固液混合物自然冷却，至约50-60℃结束。
固液分离
将冷却的固液混合物经压滤或连续离心等方式进行分离，得碱水解糖稀液与湿态渣。
浓缩
将碱水解糖稀液减压浓缩至糖量约250g/L，此为碱水解糖浓缩液；冷凝液用于原料调配。
水洗
添加湿态渣量1-5倍量的水并搅拌水洗、固液分离，重复水洗至中性后分离结束，分离洗液用于原料调配或并入碱水解稀液或碱水解浓缩液，湿态渣干燥。
pH调节
以盐酸、磷酸、硫酸、亚硫酸、硝酸等酸中的一种调节水解浓缩液，控制pH约4.0-5.0。
检验
糖量约200-240g/L，pH约4.0-5.0，具有钙、铁、磷、锌、钾等矿物质及盐，满足酵母乙醇发酵营养要求。

Claims (10)

1.酒糟碱水解糖液，其特征是：含丰富矿物质与盐，可直接用于发酵生产燃料乙醇。
2.酒糟碱水解糖液制备工艺，其特征是：以酒糟等为原料，不干燥，添加碱催化剂，采用低浓度碱溶液、微波加热处理酒糟，经固液分离、pH调节等工艺。
3.选用固态发酵白酒生产的丢糟——酒糟副产物为原料，酒糟不经干燥预处理。
4.采用氢氧化钠、氢氧化钾、碳酸钠、碳酸氢钠、氨水等中的一种作为碱水解催化剂，浓度控制在约1-10%(w/w)。
5.采用微波加热处理，控制在50-160℃约0.5-3h。
6.碱水解分离渣经水洗、干燥、粉碎等处理后可用作重金属废液等处理的吸附材料。
7.减压浓缩分离获得的碱水解液。
8.浓缩冷凝液复用于原料调配。
9.采用盐酸、磷酸、硫酸、亚硫酸、硝酸等酸中的一种调节水解浓缩液，控制pH约4.0-5.0。
10.分离洗液复用不排放。
CN201110354549.7A 2011-11-10 2011-11-10 酒糟碱水解糖液及工艺 Expired - Fee Related CN103103218B (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003105889A1 (en) * 2002-06-13 2003-12-24 Novozymes North America, Inc. Processes for making ethanol
CN1699583A (zh) * 2005-06-20 2005-11-23 郎咏梅 利用甜高粱秸秆固体发酵蒸馏制取乙醇的方法
CN101775446A (zh) * 2010-01-27 2010-07-14 四川大学 一种糖化降解白酒丢糟制备可发酵糖的工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003105889A1 (en) * 2002-06-13 2003-12-24 Novozymes North America, Inc. Processes for making ethanol
CN1699583A (zh) * 2005-06-20 2005-11-23 郎咏梅 利用甜高粱秸秆固体发酵蒸馏制取乙醇的方法
CN101775446A (zh) * 2010-01-27 2010-07-14 四川大学 一种糖化降解白酒丢糟制备可发酵糖的工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王铮等: "热带假丝酵母利用酒糟水解液发酵生产木糖醇的初步研究", 《中国酿造》 *

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