What is the approximate yield for the gaseous fraction?
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What is the approximate yield for the gaseous fraction? Such as increasing the yield of gaseous fractions?
Actually, when talking about the yield of gas phase products, it generally refers to the yield of pure propylene; in normal production, it is sufficient to keep the yield of pure propylene at around 30%
I think it mainly depends on the propylene content in your liquefied gas!
The yield depends on the propylene content in your feed gas; the recovery rate can be over 80%
32% is the quality factor, and the volume of the catalytic feedstock contains 39% propylene; I’m not sure if this is high or not. Please provide your opinion
Yes, the specific yield depends on the raw materials used; when ethane gas is involved, it’s the yield of propylene that matters. It’s difficult to determine the overall yield, as it varies depending on the raw materials used.
The yield of the gas phase is related, on the one hand, to the content of the target product in your raw materials, and on the other hand, to your process. The main product of the gas phase is propylene; with current technology, it is generally possible to separate over 90 percent of the propylene, and the key component here is the propylene column ； The propylene content in the raw materials is generally determined by the upstream suppliers. So, as long as the operations are done properly, that’s fine, unless you’re making changes to the propylene tower.
The yield is not easy to measure; it mainly depends on the propylene extraction rate of your facility. If this rate can reach over 90%, then by controlling the amount of propylene carried away by the liquid at the bottom of each tower, the amount of propylene carried away in the vapor at the top of the towers, and the amount of propylene in the final liquefied gas, everything will be fine. As far as I know, the mass yield is around 24%, with the content in the raw material varying between 28% or so (on a molar basis)
Our company generally sets the target at around 29-30; we pay attention to whether the oil catalytic unit uses catalysts that increase propylene production, as well as the propylene content in the liquefied gas
The propylene content in the feed gas is generally above 30%, and the overall yield of the gas separation process should be around 96%. The key is to reduce the amount of unreacted gas discharged and to improve the precision of distillation; typically, the reflux ratio for propylene should be above 16! 1111
The propylene yield after the crude propylene purification tower has reached over 90 percent, and the purity of our propylene has reached 99 percent