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A 50-month gasifier mechanistic study and downstream unit process development program for the pressurized ash-agglomerating fluidized-bed gasification system: Annual technical progress report, September 1987--September 1988

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KRW Energy Systems Inc. has been engaged in a coal gasification and hot gas cleanup technology development program at its pilot plant located at the Waltz Mill Site near Pittsburgh, PA. The coal gasification development program is now considered to be complete, and the primary focus of recent efforts under this contract has been on hot gas cleanup (HGCU). The external hot gas cleanup system at the KRW pilot plant was commissioned in July 1986. Through May 1988, 14 hot gas cleanup tests and 16 external desulfurization cycles were completed to develop a zinc ferrite desulfurization process; included were 953 hours of sulfidation and 623 hours of zinc ferrite regeneration. The external desulfurization tests were integrated with in-bed desulfurization tests conducted in the KRW gasifier-desulfurizer. Fourteen in-bed desulfurization tests were conducted, comprising 700 hours with dolomite injection and 1700 hours with dolomitic limestone injection. From September 30, 1987 through September 30, 1988, the period covered by this report, HGCU test plans TP-037-7, TP-037-8 and TP-037-9 were completed. These tests are discussed in this report. Additionally, a final privately-sponsored test was conducted in July 1988. Following the July test, the pilot plant subsystems were secured and winterized such that the plant will be maintained in a standby condition. 6 refs., 87 figs., 57 tabs.

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Field Value
State active
Citation Schmidt, D.K.; Datta, S.; Haldipur, G.B.; Katta, S.; Kettering, E.; Lucas, J.L.; Smith, K.J.
Is NETL associated Yes
NETL Point of Contact Roy Long
NETL Point of Contact's Email
NETL program or project KMD
Publication Date 3/1/1989