The design based on small test results, refer to the relevant domestic industry engineering examples and industry-related standards, design process, the process includes the reaction section, methanol recovery section, toluene extraction section, toluene recovery section , vannillin refined section. And the material balance is carried out for all the sections, and the heat recovery is carried out for the reaction section, the methanol recovery section and the toluene recovery section. The equipment used in the chemical process equipment selection, in order to complete the annual output of 500 tons of biomass vanillin engineering design, set the number of working days for 300 days, 1.7t per day produced vanillin. In order to achieve the daily production goals, choose two nominal volume of 6.3m3 glass-lined closed mixing container for continuous reaction.

This design is based on industry standards such as the technical design of process system engineering (HG / T 20570-1995) and the design of chemical plant equipment (HG 20546-1992), refer to "Chemical Technology Handbook", "Chemical Engineer Technology Book" and other tools The design requirements of the book are designed.

Project achievements: Shanghai Municipal Science and Technology Commission of local colleges and universities capacity building project "biomass vanillin green production technology key technology research and development" (800,000) Research content

Keywords：Vanillin；Biomass；Engineering Design

目录

1 绪论 1

1.1 4-甲基愈创木酚和香兰素的性质、用途 1

1.1.1 4-甲基愈创木酚的性质、用途 1

1.1.2 香兰素的性质、用途 1

1.2 香兰素的合成方法 1

1.2.1 愈创木酚法 2

1.2.2 木质素法 3

1.2.3 丁香酚法 3

1.2.4 黄樟素法 3

1.2.5 对羟基甲苯醛法 4

1.2.6 对甲酚法 4

1.2.8 以1，2-二苯乙烯类化合物为原料的生物转化 5

1.2.9 香草酸的生物转化 5

1.2.10 丁子香酚的生物转化 5

1.3 本论文主要研究内容 5

2 实验部分 6

2.1 主要试剂和仪器 6

2.1.1 主要实验试剂 6

2.1.2 主要实验仪器 7

2.2 实验过程 7

2.2.1 4-甲基愈创木酚法合成香兰素反应方程 7

2.2.2 实验步骤 8

2.3 结果与讨论 8

2.3.1 不同溶剂对反应影响 8

2.3.2 反应时间对反应的影响 8

2.3.3 不同反应温度对反应的影响 9

2.3.4 催化剂与原料比不同对反应的影响 9

2.3.5 工艺选择 9

2.3.6 过程条件工艺流程图 10

2.4 工艺操作说明 10

2.4.1 各工艺过程指标 10

2.4.2工艺操作规程