Method of Fabricating Oil Product of Gasoline

摘要

An oil product of gasoline is fabricated. The product contains hydrocarbon compound ranged as a gasoline composition. The purification process of dimethyl ether (DME) used in the present invention greatly reduces the feed rate for obtaining a smaller reactor with cost down. Carbon dioxide (CO2) is separated to be recycled back to the gasifier to be reused, archived or used otherwise for improves global environment. At the same time, CO2 is reacted with hydrocarbons, water vapor, etc. through a novel high-temperature plasma torch to generate a synthesis gas (syngas) of carbon monoxide (CO) and hydrogen (H2) for regulating a hydrogen/carbon ratio of a biomass- or hydrocarbon-synthesized compound and helping subsequent chemical synthesis reactions. In the end, the final gasoline production has a high yield, a high octane rate, low nitrogen and sulfur pollution and a highly ‘green’ quality.

主权项

1. A method of fabricating an oil product of gasoline, comprising steps of:
(c) using a synthesis gas (syngas) of hydrogen (H2) and carbon monoxide (CO) to obtain dimethyl ether (DME) through a one-step synthesis with a synthesis catalyst; (d) separating carbon dioxide (CO2) from DME to obtain purified DME while flowing back unreacted part of said syngas of H2/CO; (e) processing dehydration to said purified DME in a reactor to obtain water (H2O), gasoline-range hydrocarbon compounds and light hydrocarbon compounds; and (f) separating H2O, said gasoline-range hydrocarbon compounds and said light hydrocarbon compounds through condensation to obtain liquid-phase materials of H2O and gasoline and gas-phase materials of light hydrocarbon compounds,
wherein a part of said gas-phase light hydrocarbon compounds is flown back to process step (e) to increase selectivity rate of said gasoline-range hydrocarbon compounds.