METHOD OF PURIFYING A LIQUEFIED PETROLEUM GAS STREAM

摘要

The invention concerns a process for converting a contaminated liquefied petroleum gas (LPG) stream comprising C3 and/or C4, and further comprising from 80 to 20 mol% of dimethylether (DME) into a purified LPG stream, wherein the DME-contaminated LPG stream is fed to an oxygenate-to-olefin (OTO) process at conditions whereby the DME reacts to form olefins, and wherein purified LPG stream is obtained. Moreover, the invention concerns a system for producing oil and/or gas from an underground formation, including a well above the formation; a mechanism to inject an enhanced oil recovery formulation into the formation, and an oxygenate-to-olefin reactor.