November 2001

Special Report: Refining Developments

Consider improving refining and petrochemical integration as a revenue-generating option

FCC operations may be an increasing propylene source due to new processing methods

Light olefins – ethylene, propylene and butylenes – are the basic building blocks in the manufacture of various petrochemical products and fuels. Presently, light olefins are used to manufacture, polymers, antifreezes, petrochemicals, gasoline, explosives, solvents, medicinals, fumigants, resins, synthetic rubber and many other products. Ethylene is the largest volume petrochemical feedstock, and virtually all of the ethylene supply comes from thermal (steam) cracking of hydrocarbon feedstocks such as ethane, propane, naphthas and gasoils. Propylene is second in importance to ethylene as a raw material. Petrochemical-grade propylene is a coproduct in ethylene cracking. Liquid-fee

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