초록 ▼

Selective production of C5-C40 hydrocarbons containing C5-C20 hydrocarbons having a high paraffins content, i.e., for producing gasoline and diesel fuel and useful as a chemical feedstock, is achieved by contacting H2/CO mixtures with supported ruthenium catalysts under conditions including elevated

Selective production of C5-C40 hydrocarbons containing C5-C20 hydrocarbons having a high paraffins content, i.e., for producing gasoline and diesel fuel and useful as a chemical feedstock, is achieved by contacting H2/CO mixtures with supported ruthenium catalysts under conditions including elevated temperature and ratios of gas hourly space velocity/pressure below about 24,000 v/v/hr/MPaA to effect percent CO conversions at least about 20%. The ruthenium catalyst support contains a titanium oxide, niobium oxide, vanadium oxide or tantalum oxide and C5-C40 hydrocarbons can be selectively obtained in about 60-90 weight percent of total hydrocarbon products.

대표청구항 ▼

A process for selectively producing paraffins comprising: (a) first contacting a mixture of H2 and CO for at least 10 hours with a reduced and supported ruthenium catalyst, said ruthenium catalyst comprising ruthenium on a support selected from the group consisting of TiO2, ZrTiO4, TiO2-carbon, TiO2

A process for selectively producing paraffins comprising: (a) first contacting a mixture of H2 and CO for at least 10 hours with a reduced and supported ruthenium catalyst, said ruthenium catalyst comprising ruthenium on a support selected from the group consisting of TiO2, ZrTiO4, TiO2-carbon, TiO2-Al2O3, TiO2-SiO2, alkaline earth titanates, alkali titanates, rare earth titanates, V2O3, Nb2O5, Ta2O5, Al2O3-V2O3, Al2O3-Nb2O5, Al2O3-Ta2O5, SiO2-V2O3, SiO2-Nb2O5, SiO2-Ta2O5, V2O3-carbon, Nb2O5-carbon, Ta2O5-carbon, alkaline earth Group VB oxides, alkali-Group VB oxides, rare earth-Group VB oxides, Group IVB-Group VB oxides, and mixtures thereof, at Fischer-Tropsch conditions such that the temperature ranges from about 100°to 400°C., the pressure ranges from about 0.2 to 10 MPaA, the gas hourly space velocity, GHSV, ranges from about 100 to 50,000 v/v/hr., and wherein the ratio of GHSV/pressure is below about 24,000 v/v/hr./MPaA, and at least about a 20% CO conversion is effected; and (b) continuing said contacting as in step (a) at a H2/CO molar ratio from about 0.1 to 4 and thereafter recovering a hydrocarbon mixture comprising C5-C40 hydrocarbons, containing C5-C20 paraffins and olefins in a paraffins to olefins weight ratio of at least about 1.5.