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42-inch gas producer Run 99: Holmes-Stretford system evaluation. Final report

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From the standpoint of the Holmes-Stretford plant operation, Run 99 was largely a success. The only serious problem is presented by the entrainment from the plate tower. The maximum flow rate at which the tower can be operated (four gallons per minute) enables the Holmes-Stretford system to scrub hydrogen sulfide only to a level of 300 to 400 parts per million. Peabody Process Systems, Inc. recommends that vertical knockout drums be installed following both the polishing tower and the flash drum. Deentrained Stretford liquor is to be returned from both knockout drums to the oxidizer. Suggested proportions for the two knockout drums are presented. Pursuant to Run 99, PPSI performed a review of the design of the existing polishing tower. It is our contention that the tower should be capable of handling the design liquor and gas flows at the system design conditions. The possibility exists, therefore, that some unaccounted-for blockage is present in the METC polishing tower. PPSI recommends that a thorough inspection and engineering review of the polishing tower internals be made to ensure that the liquor flow path is unobstructed and the result is fabricated in accordance with the design. The results of this review will dictate the further course of action. Other specific recommendations are made.

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Field Value
State active
Citation Not Available
Is NETL associated Yes
NETL Point of Contact Roy Long
NETL Point of Contact's Email
NETL program or project KMD
Publication Date 5/10/1982