A DIRECT METHOD FOR PREPARING MONOCYCLIC AROMATICS AND LONGER-CHAIN OLEFIN BY USING CO2-RICH SYNGAS

摘要

The present invention relates to a direct synthesis method of a monocyclic aromatic compound and a long chain olefin compound from syngas rich in carbon dioxide. More particularly, the direct synthesis method for a monocyclic aromatic compound and a long chain olefin compound of the present invention comprises: a manufacturing process of short chain hydrocarbon having 1 to 15 carbon atoms by Fisher-Tropsch (FT) synthesis process; and a manufacturing process of a monocyclic aromatic compound and a long chain olefin compound by dehydrogenation process of the manufactured short chain hydrocarbon. Further, the direct synthesis method of the present invention maximizes yield of short chain hydrocarbon by using a syngas, which has a molar ratio of hydrogen, carbon monoxide, and carbon dioxide limited to a particular range and is rich in carbon dioxide, as the syngas for the FT synthesis process; and maximizes yield of a monocyclic aromatic compound or a long chain olefin compound by specifically designating composition of a catalyst used for the dehydrogenation process and temperature and pressure conditions.