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目录
1 前言·····························································3
1.1 柠檬酸的性质和用途···········································3
1.2 柠檬酸的来源和发展情况·······································3
2 生产工艺·························································4
2.1 生产方法·····················································4
2.2 工艺流程·····················································4
2.3 操作工艺·····················································5
2.3.1 原料的处理·············································5
2.3.2 发酵工序···············································5
2.3.3 醪液处理工序···········································6
2.3.4 提取工序···············································6
2.3.5 精制工序···············································6
3 工艺计算·························································7
3.1 物料衡算·····················································7
3.1.1 工艺技术指标及基础数据·································7
3.1.2 原料消耗计算···········································7
3.1.3 发酵醪量的计算·········································7
3.1.4 接种量的计算···········································8
3.1.5 液化醪量的计算·········································8
3.1.6 成品柠檬酸·············································8
3.1.7 年产5万吨一水柠檬酸总物料衡算·························8
3.2 热量衡算·····················································9
3.2.1 液化热平衡计算·········································9
3.2.2 发酵过程中蒸汽耗量的计算·······························9
3.2.3 发酵过程中冷却水耗量的计算····························11
3.2.4 发酵过程中无菌空气耗量的计算··························11
4 设备选型························································12
4.1主要设备的选型···············································12
4.1.1 发酵罐的选型··········································12
4.1.1.1 发酵罐容积和台数的确定························12
4.1.1.2 发酵罐主要尺寸计算····························12
4.1.1.3 发酵罐冷却面积计算····························13
4.1.1.4 发酵罐搅拌器的计算····························13
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