Advances in the OCC process for propylene production

摘要

Driven by rising demand for polypropylene,cumene,acry-lonitrile and other derivatives,increasing global demand is seen for propylene.Over the next 5 yr,propylene demand is expected to grow at a pace of about 4%/yr,and 30% of the worlds propylene production is expected to come from specialized propylene technologies.Worldwide,propylene is derived largely from naphtha steam cracking,fluid catalytic cracking(FCC),propane dehydro-genization(PDH)or olefins conversion technology(OCT).Another route for producing propylene includes methanol-to-propylene(MTP),which uses methanol as feedstock for the production of propylene.In MTP,the typical yield of propylene(based on hydrocarbon)is only 62%-64%,making MTP a small part of the propylene market.