1 The source task
This design aimed at benzaldehyde requiring us to design a reasonable process and choose the corresponding process equipments based on the study of professional basic course. Its purpose is to improve the ability of solving practical problem of the chemical products production workshop design ability and master the basic methods and procedures through chemical process design, material constant calculate, heat balance calculation，equipment selection and calculation . Through this course design, we can also improve the ability of using the design drawing of the computer.
2 Design Standards
The design references the following national standards and regulations.
(1)    Production of dangerous goods and harmful factors in classification and code.（GB/T13816-1992）
(2)    Dangerous chemical commonly used in the classification criteria. （GB13690-1992）
(3)    Typical chemical medium pressure vessel explosion hazards and safety levels. （HGJ43-1991）
(4)    Factory fire safety requirements.（GBJ16-1987）
(5)    Integrated wastewater discharge requirements.（GBJ8978）
(6)    Steel pressure vessel.（GB150）
(7)    The standard shell and tube heat exchanger.（GB151）
(8)    System and Equipment layout design requirements.（HG20570）
(9)    Chemical plant piping design requirements.（HG/T20549）
3 Design principles and key design indicators
Principle：    
(1)    Safe and reliable: the design of many chemical substances are flammable, explosive or toxic. Therefore, the design must be taken into account of all sorts of obvious  and potentially dangerous and used strict regulations of national and local health and safety to ensure little environmental pollution and the health of production personnel.
(2)    operation is simple: adhere to the scientific attitude to determine various production process and equipment and the operation condition reasonably, striving to achieve the  mild reaction condition and low requirements of equipments and convenient operation of the workers as the result.
(3)    reasonable economy: reduce equipment costs, raw material costs, labor costs and other aspects investment effectively and reasonably.
(4)    easy to install: Plant layout should meet the requirements of the construction and installation, with emphasis to consider the installation of large equipment, factory and load road pavement construction and installation standards should meet the requirements.
(5)    Basis of calculation:
Annual production of 80000 tons
Days to 300 days in，45 days for machine maintenance, 15 days mobile
Keywords: benzaldehyde; benzyl alcohol; oxidation; process calculation

目录
1 总论... 1
1.1 概论    1
1.2 文献综述    1
1.3 苯甲醛    4
       1.3.1苯甲醛的性质.. 5
1.3.2 苯甲醛的用途    5
1.3.3 世界苯甲醛概况    6
1.3.4 我国苯甲醛的生产发展历程    6
    1.4 主要原料性质及用途 .7
1.4.1 苯甲醇    7
 1.5 主要产物及中间产物的性质及用途. 7
    1.5.1 设计的任务    7
1.5.2 设计的目标    7
1.5.3 生产工艺条件    8
2 工艺流程设计.. 9
2.1工艺流程设计.. 9
2.1.1 工艺路线    9
2.1.2 基本原理    9
  2.2 主要化学反应.10
 2.3 生产控制说明及控制项目...10
 2.4 工业安全.10 8万吨/年苯甲醇氧化法制备苯甲醛工艺设计(2):http://www.751com.cn/huaxue/lunwen_7702.html