Please use this identifier to cite or link to this item: http://hdl.handle.net/10524/47992

Process chemistry monitoring at the HGP-A power plant : analytical results, process problems and modifications

Item Summary

Title: Process chemistry monitoring at the HGP-A power plant : analytical results, process problems and modifications
Authors: Thomas, Donald M.
Keywords: operations management
power plant
power generation
HGP-A
brine
show 8 morebrine chemistry
geochemistry
steam
chemical analysis
Hawaii
Big Island
Puna
Kilauea

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Issue Date: Oct 1982
Publisher: Geothermal Resources Council
Citation: Thomas DM. 1982. Process chemistry monitoring at the HGP-A power plant : analytical results, process problems and modifications. Transactions: vol. 6, October 1982, 401-404. Davis (CA): Geothermal Resources Council.
Abstract: "The HGP-A generator plant began operations on June 12, 1981 and came online on a continuous bases on March 1, 1982. During this period process problems were identified and, in most cases, plant modifications have eliminated the difficulties. Silica in the brine was stable at a pH 7.5, however, at a pH above 9.5 deposition of silica was triggered in a brine disposal system and required abandonment of the hydrogen sulfide abatement process originally proposed of the brine system. The steam phase sulfide abatement system for standby conditions was 90% effective, although superheat in the treatment system reduced abatement efficiency. Brie carryover through the separator was very low; however, scale deposition on the turbine blades resulted in substantial damage to the turbine. Non-condensable gases in the condenser were weakly partitioned into the liquid phase, and about 99% were carried into the off gas treatment system which was found to be approximately 99% effective."
Author's affiliation: Hawaii Institute of Geophysics, University of Hawaii at Manoa
Sponsor: HGP-A Geothermal Wellhead Environmental Monitoring (contract no. 14937)
Pages/Duration: 5 pages
URI/DOI: http://hdl.handle.net/10524/47992
Appears in Collections:The Geothermal Collection



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