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Title: The Grh Process With Cryogenic Recycle To Produce Sng From High Sulphur Gas Oils
Author: John C. Tao, Joe Klosek, H. L. Conway, P. A. Borrill
Source: American Gas Association 1979
Year Published: 1979
Abstract: In view of the DOEs policy of preserving light petroleum fractions for use as petrochemical feedstocks, Air Products and Chemicals, Inc., has adapted the British Gas Corporations Gas Recycle Hydrogenator (GRH) technology for the production of SNG from high sulphur gas oils, a lower cost feedstock which is not allocated by the DOE. Construction has started on such a facility at a site in Marcus Hook, Pennsylvania, which Air Products will own and operate to supply SNG to the gas distribution arm of Philadelphia Electric Co. (PECO). Figure 1 shows an overall input/output diagram of such an SNG facility. As shown, there are feeds of hydrogen, gas oil/naphtha, and refinery off-gas. In turn, the facility produces enriched SNG as well as various by-product streams- typically BTX, heavy aromatics, and C2+. In Marcus Hook, we are using 4 MM SCFD of SNG which will be sent to PECOs gas distribution system, and by-product streams of BTX and heavier aromatics which will be returned to the Sun Petroleum Products refinery which supplies the facility inputs.

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