Abstract: A gaseous mixture of carbon monoxide and hydrogen is passed in contact over a first catalyst bed comprising an iron or cobalt containing Fischer-Tropsch catalyst in combination with a crystalline aluminosilicate of the class of crystalline zeolite represented by ZSM-5 so as to obtain a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90% overhead and being a predominantly olefinic product. The total products from said contact including said liquid hydrocarbon product are then converted over a second catalyst bed containing HZSM-5 to obtain a highly aromatic product, i.e., greater than 20 weight percent.

Abstract: A method is disclosed for the conversion of a syngas to a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90% overhead and being a predominantly olefinic product, wherein the olefins have substantially internal double bonds. The method for accomplishing this stated result involves an improvement in the method for the conversion of synthesis gas by contacting the same with a catalyst composite comprising a mixture of a Fischer-Tropsch catalyst and a volume excess of an acidic catalyst, e.g., silica-alumina or a crystalline aluminosilicate zeolite and wherein the activity of the acidic component is balanced with the activity of the Fischer-Tropsch component so as to maximize the yield of desired olefinic product.

Abstract: A catalyst composition is provided which comprises a magnesium aluminate spinel having a surface area of greater than about 50 m.sup.2 /g, a total pore volume of greater than about 0.475 cc/g from about 50 to about 70 percent of the total pore volume in pores of diameter of from about 50 Angstroms to about 150 Angstroms, greater than about 30 percent of the total pore volume in pores of diameter of from about 80 Angstroms to about 150 Angstroms and from about 5 to about 20 percent of the total pore volume in pores of diameter of greater than 300 Angstroms, said magnesium aluminate spinel having deposited thereon from about 1 to about 5 weight percent cobalt oxide and from about 8 to about 20 weight percent molybdenum oxide.

Abstract: Catalytic conversion of organic compounds in the presence of a crystalline zeolite, designated ZSM-20, is provided. Zeolite ZSM-20 has a composition expressed in terms of mole ratios of oxides in the anhydrous state as follows:(0.3 - 0.6)R.sub.2 O : (0.4 - 0.7)M.sub.2 O : Al.sub.2 O.sub.3 : (x)SiO.sub.2wherein R is a tetraethylammonium cation, M is an alkali metal cation and x is at least 7, and is characterized by a specified X-ray powder diffraction pattern.

Abstract: A new crystalline zeolite, designated ZSM-20, a method of making same and the use thereof in catalytic conversion of organic compounds, e.g. hydrocarbons, is the subject of this application. The new zeolite has a composition expressed in terms of mole ratios of oxides in the anhydrous state as follows:(0.3 - 0.6)R.sub.2 O: (0.4 - 0.7)M.sub.2 O: Al.sub.2 O.sub.3 :(x)SiO.sub.2wherein R is a tetraethylammonium cation, M is an alkali metal cation and x is at least 7, and is characterized by a specified X-ray powder diffraction pattern.

Abstract: A new crystalline aluminosilicate zeolite is disclosed which has the following formula in terms of mol ratios of oxides on a water-free basis:0.9 .+-. 0.3 M.sub.2/n O : Al.sub.2 O.sub.3 : z SiO.sub.2wherein M is at least one cation having a valence n and z is at least 10. This zeolite is designated ZSM-18.