Method for separating vinyl acetate
A technology of vinyl acetate and ethyl acetate, applied in chemical instruments and methods, preparation of carboxylic acid esters, preparation of organic compounds, etc., can solve the problems of high energy consumption, large investment, complicated separation process, etc., and achieve investment saving and good Energy saving effect and energy consumption reduction effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0037] use figure 2 The flow shown is based on the 300,000 tons / year vinyl acetate plant of the gas phase oxidation process route, and the materials whose mass percentage composition is shown in Table 1 are separated. There are 60 theoretical plates in the dividing wall distillation column, 40 theoretical plates on both sides of the dividing wall section, 10 theoretical plates in the separation section under the dividing wall, and the 11th plate for the feed 3 Above the plate, the operating pressure is 0.01MPaG, and the top reflux ratio is 8. For comparison, the operating conditions and separation results are listed in Table 7.
[0038] The corresponding detailed component separation effects are shown in Table 4.
[0039] Table 4 Partition-wall rectifying column separation result detailed table (embodiment 1)
[0040] Component, wt%
Embodiment 2
[0042] use figure 2 The flow process shown, other conditions are the same as [Example 1], the total number of theoretical plates, the number of theoretical plates on both sides of the dividing wall, the reflux ratio, the position of the feed plate and the output plate are changed in the dividing wall rectification column. The total number of theoretical plates is 50, the number of theoretical plates on both sides of the dividing wall section is 35, the part of the separation section under the dividing plate has 5 theoretical plates, the feeding plate of feed 3 is above the 14th plate, and the operating pressure It is 0.01MPaG, and the reflux ratio is 12. For the convenience of comparison, the operating conditions and separation results are also listed in Table 7.
[0043] The detailed separation effect of the components is shown in Table 5.
[0044] Table 5 Partition-wall rectifying column separation result detailed table (embodiment 2)
[0045] Component, wt%
Embodiment 3
[0047] use figure 2 The flow process shown, other conditions are the same as [Example 1], the total number of theoretical plates, the number of theoretical plates on both sides of the dividing wall, the reflux ratio, the position of the feed plate and the output plate are changed in the dividing wall rectification column. The total number of theoretical plates is 70, the number of theoretical plates on both sides of the partition in the partition wall is 45, the part of the separation section under the partition has 10 theoretical plates, the operating pressure is 0.01MPaG, and the reflux ratio is 10. For the sake of comparison, the operating Conditions and separation results are also listed in Table 7.
[0048] The corresponding detailed component separation effects are shown in Table 6.
[0049] Table 6 Partition-wall rectifying column separation result detailed table (embodiment 3)
[0050] Component, wt%
[0051] [Example 1~3] operating conditions and separati...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More