Patent ID: 7776208

Claim:
A process for integrating a refinery hydroprocessing unit, with a syngas stream, a hydrocarbon synthesis unit, and a utilities generation unit, the process comprising the steps of: (a) supplying a raw syngas comprising H2, (b) providing an integrated hydrocarbon processing system comprising: (i) a hydrocarbon synthesis unit, (ii) a petroleum refinery hydroprocessing unit, which is operable to produce at least a refinery product and a refinery purge gas, (iii) an acid gas removal unit, (iv) a utilities generation facility, (v) a syngas membrane separator, and (vi) a PSA unit, (c) forming a desulfurized syngas by stripping contaminants from said raw syngas and said refinery purge gas in said acid gas removal unit, (d) separating in said syngas membrane separator a first portion of desulfurized syngas to form an H2-enriched permeate stream and an H2-lean retentate stream, (e) forming an H2-enriched syngas by combining a second portion of desulfurized syngas and a first portion of said H2-enriched permeate stream, wherein said H2-enriched syngas is formed with an effective H2/CO ratio for the production of synthetic hydrocarbon products, (f) producing a synthetic hydrocarbon product by feeding said H2-enriched syngas to said hydrocarbon synthesis unit, (g) charging a second portion of said H2-enriched permeate stream to said PSA unit, (h) obtaining a substantially pure H2 stream from said PSA unit, (i) producing a combustible tail gas from said PSA unit, (j) supplying said substantially pure H2 stream to said petroleum refinery hydroprocessing unit, and (k) feeding said combustible tail gas together with said H2-lean retentate stream to said utilities generation unit, so as to produce useful power and steam therefrom.