Open AccessPurification Process Design of Vinyl Acetate Based on Aspen Plus
Author(s) -
Ya Nan Xie,
Zhi Yong Meng,
Li Fu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/545/1/012026
Subject(s) - distillation , vinyl acetate , extraction (chemistry) , acetic acid , fractionating column , fractional distillation , chromatography , materials science , process (computing) , chemistry , process engineering , pulp and paper industry , engineering , organic chemistry , computer science , copolymer , operating system , polymer
Based on Aspen Plus process simulation, the purification stage of the production of vinyl acetate by 450000 tons of calcium carbide acetylene process was optimized.The main equipment involved in the process are degassing tower, deacetaldehyde tower, crude separation tower, vinyl acetate refining tower, acetic acid distillation column and so on. The unit operation involved mainly includes general distillation, azeotropic distillation, distillation with side line extraction, absorption, extraction and so on. Aspen Plus sensitivity analysis function is used to analyze and optimize tower parameters such as reflux ratio, the number of theoretical plates, distillate feed ratio, feed position, side line extraction position. The results will provide reference for improving the problems of low purity and energy waste of products.