초록 ▼

The conversion of less than 1 H2/CO ratio syngas to high yield of C3 plus product is accomplished with a CO reducing catalyst comprising shift characteristics and the product of Fischer-Tropsch synthesis is converted to premium gasoline and distillate fuels by contact with acidic ZSM-5 zeolite. The

The conversion of less than 1 H2/CO ratio syngas to high yield of C3 plus product is accomplished with a CO reducing catalyst comprising shift characteristics and the product of Fischer-Tropsch synthesis is converted to premium gasoline and distillate fuels by contact with acidic ZSM-5 zeolite. The syngas conversion may be accomplished in any catalyst system permitting a very close temperature control on the exotherm encountered and the gasoline-distillate yield relationship may be varied as a function of temperature and pressure.

대표청구항 ▼

In a process for converting syngas to carbon compounds comprising oxygenates and hydrocarbon products wherein syngas is contacted with an iron-containing Fischer-Tropsch catalyst at a temperature with the range of 400°to 600°F. and a pressure within the range of 1-1500 psig so as to achieve high con

In a process for converting syngas to carbon compounds comprising oxygenates and hydrocarbon products wherein syngas is contacted with an iron-containing Fischer-Tropsch catalyst at a temperature with the range of 400°to 600°F. and a pressure within the range of 1-1500 psig so as to achieve high conversion of said syngas to substantial amounts of C3+carbon compounds comprising no more than 20% methane plus ethane, and all or a portion of the product of said syngas conversion is passed in contact with an acidic crystalline zeolite having a pore dimension greater than 5 Angstroms, a silica-to-alumina ratio of at least 12, and a constraint index within the range of 1-12 at a temperature of 530°-850°F., a pressure from about 1 atmosphere to about 800 psig, and at a space velocity of from about 0.2 to 30 WHSV so as to promote the formation of gasoline and distillate materials; the improvement which comprises increasing the rate of syngas conversion by maintaining a H2/CO ratio in the range of 0.5 to 1 and achieving an overall syngas conversion of greater than 60%.