In catalytic cracking, can the 10% ethylene contained in the dry gas not be recovered?
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In catalytic cracking and liquefied petroleum gas, propylene and propane can be separated out through gas separation units to serve as raw materials for producing MTBE. Can the approximately 10% of ethylene present in the catalytic dry gas be recovered? I heard that ethylene is quite expensive; it’s a shame to use it as fuel
In the mid-1990s, Sinopec conducted pilot and pilot-scale tests at our plant using catalytic dry gas to extract ethylene, in a process known as \"ethylene adsorption\"; however, those efforts were abandoned for some reason that is unknown.
Depending on the product demand, the FCC main unit processes can also vary greatly, including MIP, RIPP, and ARGG. . . I don’t know which one the original poster is referring to?
Has the catalyst been changed again? Become less olefin-producing?
Here we call it ZRMCC; I don’t really know what it is either:lol
Sorry, I was wrong; it’s called MZRCC:$
Yes, at the Beijing Institute of Chemical Technology, there is a process called dry gas recovery for the production of ethylene, and several such units are already in operation
It can be used to produce aromatics from dry gas, with the process yielding light oil.
You can check out Yanshan Petrochemical’s dry gas concentration unit (PSA pressure swing adsorption technology), as well as Beijing Institute of Chemical Technology’s shallow cold oil absorption technology.