Process Design for a Plant Producing 60,000 Tons of Vinyl Acetate per Year by the Acetylene Method

There is some information available in the industry, but at present this information cannot be found in bookstores or on the Internet. The general process is as follows: Acetylene is washed with sodium hypochlorite, then with an aqueous solution of sodium hydroxide, followed by washing with cold water. After that, it is dried using an activated carbon dryer and heated to 120–150 degrees. It is then mixed with acetic acid vapor that has been evaporated, and the mixture is sent to a fluidized bed reactor for reaction. Activated carbon loaded with zinc acetate is used as a catalyst for this reaction. The gases produced as a result of the reaction are initially separated and condensed; most of the unconverted acetic acid, acetylene, and the activated carbon are removed from these gases. The remaining liquid is then sent to a distillation unit where distillation takes place, allowing the production of vinyl acetate in quantities of over 99%, as well as the recovery of unreacted acetic acid and the by-product acetaldehyde. The process is quite complex; it’s very difficult to carry out design work based on just these elements, as there are many detailed issues to take into account.

Do undergraduates need to carry out such detailed design?

Thank you, I now understand a lot about the overall framework~~

It is necessary. Process flow diagrams need to be drawn, as well as material balance and heat balance calculations. Process calculations and design selections for the main equipment and auxiliary equipment are required, along with workshop layout design. Technical analysis, economic benefit analysis, safety assessment, and environmental impact assessment are also needed. . . . In short, I need all the information in this area. . .

Oh, the original poster – the scope of this project involves everything you mentioned above. Not to mention that you’re just an undergraduate student; even if you had a design team of at least 5 members, all of whom would be engineers with considerable expertise in this field, it’s unlikely that they could complete the task within a year. The process from starting with acetylene to producing high-quality vinyl acetate involves two stages in our industry: the synthesis stage and the distillation stage, with a total of no fewer than 10 different processes involved. If I were to give you just one of these processes, it would still take at least two days to create a PID diagram that meets the basic engineering requirements. On top of that, there’s also the need to calculate and select the appropriate equipment (not to mention all the other considerations). If I gave you one process per month, would you be able to handle it? It seems like you’re facing quite a big challenge here.

:'(But that’s exactly what we ask for.) . . . I guess it’s fine as long as we have a framework and approach of roughly the same size. . . We don’t have a choice either. . .

Hello everyone, I am a university student who needs to write a paper on the production process of acetylene. Does anyone here have such a paper or equipment diagrams? Thank you so much; I really appreciate your help

The graduation projects in schools – the next batch can build on those of the previous batch – but there is a gap between them and reality in factories; it would be ideal if that gap were reduced!

Doing a graduation project with such a large volume of work – impressive, really!

I’m a senior graduate. I’m looking for anyone who has detailed information on a project to produce 100,000 tons of vinyl acetate. I really need it. Thank you very much. If that person has the information, please send it to me. My email address is yepengting2005@126.com. Thank you so much!