Abstract: A two-step process is disclosed wherein C.sub.9.sup.+ hydrocarbons are prepared from C.sub.4.sup.- hydrocarbons by steam reforming followed by Fischer-Tropsch synthesis over a special cobalt-containing catalyst. Yields of C.sub.9.sup.+ hydrocarbons are increased by recycling a gaseous fraction comprising unconverted H.sub.2 and CO as well as C.sub.8.sup.- hydrocarbon by-products and steam to the steam reformer.

Abstract: A process is disclosed for the preparation of C.sub.5 and higher boiling hydrocarbons by contacting a mixture of carbon monoxide and hydrogen over a supported cobalt catalyst in which the cobalt is distributed in a specified inhomogeneous manner on the support.

Abstract: Syngas is subjected to Fischer-Tropsch synthesis over a special Co/Zr/SiO.sub.2 catalyst and the C.sub.10 -C.sub.19 fraction of the synthesized product is converted into XHVI lub oil by treating with an organic peroxide.

Abstract: Middle distillates are prepared from syngas by a two-stage series-flow process comprising (1) Fischer-Tropsch synthesis over a special Zr, Ti or Cr promoted Co-catalyst followed by (2) hydroconversion of the total synthesized product over a supported noble metal catalyst.

Abstract: A two-step process is disclosed wherein C.sub.9.sup.+ hydrocarbons are prepared from C.sub.4.sup.- hydrocarbons by steam reforming followed by Fischer-Tropsch synthesis over a special cobalt-containing catalyst. Yields of C.sub.9.sup.+ hydrocarbons are increased by recycling a gaseous fraction comprising unconverted H.sub.2 and CO as well as C.sub.8.sup.- hydrocarbon by-products and steam to the steam reformer.

Abstract: C.sub.5.sup.+ hydrocarbons are prepared from C.sub.4.sup.- hydrocarbons by a two-stage process comprising steam reforming followed by Fischer-Tropsch synthesis over a special cobalt-containing catalyst; a gaseous fraction comprising unconverted H.sub.2 and CO as well as C.sub.4.sup.- hydrocarbons and CO.sub.2 formed as by-products is separated from the synthesized product and recycled to the steam reformer.

Abstract: Syngas is subjected to Fischer-Tropsch synthesis over a Co/Zr/SiO.sub.2 catalyst and the C.sub.20.sup.+ fraction of the synthesized product is converted into linear C.sub.10 -C.sub.20 olefins by mild thermal cracking.

Abstract: A process is disclosed whereby a full range catalytically cracked gasoline is upgraded over a mixture of Zn/Cr catalyst and a crystalline iron silicate catalyst having a SiO.sub.2 /Fe.sub.2 O.sub.3 molar ratio of 10-250 or a mixture of a Zn/Cr catalyst and a crystalline iron/aluminum silicate catalyst having a SiO.sub.2 /Fe.sub.2 O.sub.3 molar ratio below 250 and a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least 500.

Abstract: In a two-stage process for the conversion of H.sub.2 -poor syngas into hydrocarbons and oxygenates in which uncoverted syngas from the first stage product is converted in a second stage into paraffins over a Ni, Co or Ru catalyst, the H.sub.2 /CO molar ratio of the feed for the second stage is adjusted to the required value of 1.75-2.25 by blending this feed with an H.sub.2 -rich syngas with an H.sub.2 /CO molar ratio of at least above 1.75 which latter gas has been obtained by subjecting a small portion of the feed for the first stage to a high temperature (above 325.degree. C.) CO-shift.

Abstract: A process for the manufacture and/or conversion of hydrocarbons comprises contacting as feed any of: a gaseous mixture of carbon monoxide and hydrogen, acyclic organic compounds, hydrocarbon compounds, and mixtures thereof, under conversion conditions with a catalyst comprising silicalite.

Abstract: Middle distillate hydrocarbons are produced from feed mixtures of carbon monoxide and hydrogen by contacting said feed at elevated temperature and pressure in a first stage with certain impregnated catalysts and contacting at least the middle distillate fraction of the product of the first stage in the presence of hyrogen with a catalyst containing at least one metal having hydrogenation activity supported on a porous carrier.

Abstract: A process is disclosed for the preparation of a hydrocarbon mixture by contacting in a first stage a feed mixture of hydrogen and carbon monoxide with an H.sub.2 /CO molar ratio of less than 1.0 with a trifunctional catalyst combination containing (a) at least one metal component having catalytic activity for conversions of a H.sub.2 /CO mixture into acyclic hydrocarbons, and/or acyclic oxygen-containing hydrocarbons, (b) at least one metal component for the conversion of an H.sub.2 O/CO mixture into an H.sub.2 /CO mixture, and (c) a certain crystalline silicate containing at least one trivalent metal selected from aluminum, iron, gallium, rhodium, chromium and scandium, wherein the molar ratio of the trivalent metal oxide to silica is less than 0.1; adjusting the H.sub.2 /CO molar to at least 1.5 by adding H.sub.2 O, if necessary; followed by contacting in a second stage at least the C.sub.

Abstract: A process for upgrading of Fischer-Tropsch hydrocarbon synthesis product which comprises separating said product with at least one of a light boiling fraction and/or heavy boiling fractions and contacting said fraction(s) with certain crystalline silicates to obtain an aromatic gasoline and/or a fuel oil having a lowered pour point.

Abstract: A process is disclosed for the conversion of certain difficultly converted aliphatic oxygen-containing hydrocarbons to aromatic hydrocarbons by contacting them in low concentrations with certain other aliphatic oxygen-containing hydrocarbons over certain crystalline silicates containing iron in their structure.

Abstract: Synthesis gas is converted into gasoline by contacting the gas with a crystalline aluminosilicate zeolite catalyst, the process being characterized by conversion of by-product isobutane into gasoline by alkylation.

Abstract: The invention relates to a process for reducing the level of radioactivity of a stream of light hydrocarbons by passing the stream through sulfided solid particles.

Abstract: A process is disclosed for the preparation of catalysts comprising sulfides of at least one metal selected from nickel, cobalt, molybdenum, and tungsten on a porous carrier, which catalysts are particularly useful in hydrocarbon conversion processes.