Isomerization process using feedstock containing dissolved hydrogen
AssigneeSaudi Arabian Oil Company
InventorOmer Refa Koseoglu
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Abstract
A process and system is provided including hydroisomerization reaction zone for production of high octane gasoline blending components that provide high selectivity for producing high octane isomers of light paraffins. A light paraffin feed is enriched by incorporation of dissolved hydrogen, thereby permitting a reaction phase that is liquid or substantially liquid to produce high octane gasoline blending components. Accordingly, a substantially two phase isomerization reactor system is provided, with a hydrogen-enriched liquid feedstock phase and a solid phase catalyst.
Claims29
A process for isomerization of a gasoline pool feedstock comprising normal and single branched C4-C6 paraffins, the process comprising:
- mixing the normal and single branched C4-C6 paraffinic feedstock, and hydrogen gas, in a mixing zone that comprises one or more gas-liquid distributor vessels that include a plurality of hydrogen distribution apparatus, each hydrogen distribution apparatus comprising a tubular injector fitted with a nozzle and/or a jet and that is configured to uniformly distribute hydrogen gas into the feedstock to achieve a saturation state in the mixing zone, to produce a mixture of hydrogen-enriched feedstock reactants;
- contacting the hydrogen-enriched feedstock reactants with a solid isomerization catalyst for hydroisomerization in a substantially two-phase liquid-solid isomerization fixed-bed reaction zone under conditions that minimize cracking reactions and that are effective to isomerize paraffins in the gasoline pool feedstock into branched paraffins;
- and
- recovering an isomerate effluent stream.
Dependencies are inferred from the claim text.