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Title: PGandE Geysers Retrofit Project, Units 1-12: Final Report, Technical Data, Volume I - Sections 1-8

Abstract

The purpose of this work is to demonstrate whether there is a cost benefit to Pacific Gas and Electric Company in replacing the present iron catalyst/caustic/peroxide system used in the direct contact condenser units with an alternative approach using surface condensers and the Stretford System for hydrogen sulfide abatement.

Publication Date:
Research Org.:
Rogers Engineering Co., Inc., San Francisco, CA
Sponsoring Org.:
USDOE
OSTI Identifier:
883328
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; GEYSERS; HYDROGEN SULFIDES; IRON; Geothermal Legacy

Citation Formats

None. PGandE Geysers Retrofit Project, Units 1-12: Final Report, Technical Data, Volume I - Sections 1-8. United States: N. p., 1979. Web. doi:10.2172/883328.
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None. PGandE Geysers Retrofit Project, Units 1-12: Final Report, Technical Data, Volume I - Sections 1-8. United States. doi:10.2172/883328.
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None. Fri . "PGandE Geysers Retrofit Project, Units 1-12: Final Report, Technical Data, Volume I - Sections 1-8". United States. doi:10.2172/883328. https://www.osti.gov/servlets/purl/883328.
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@article{osti_883328,
title = {PGandE Geysers Retrofit Project, Units 1-12: Final Report, Technical Data, Volume I - Sections 1-8},
author = {None},
abstractNote = {The purpose of this work is to demonstrate whether there is a cost benefit to Pacific Gas and Electric Company in replacing the present iron catalyst/caustic/peroxide system used in the direct contact condenser units with an alternative approach using surface condensers and the Stretford System for hydrogen sulfide abatement.},
doi = {10.2172/883328},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 24 00:00:00 EDT 1979},
month = {Fri Aug 24 00:00:00 EDT 1979}
}
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Technical Report:
View Technical Report (14.83 MB)
DOI:  10.2172/883328
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  • No abstract prepared.

  • Geysers Power Plant Units 1-12 conceptual study of two H{sub 2}S abatement systems. The study is to provide a cost benefit and technical analysis of the existing (iron/caustic/peroxide) abatement system compared to retrofitting Units 1-12 with surface condensers and vent gases processing with the Stretford process. The study is based on the understanding that both H{sub 2}S abatement system compared meet the Air Pollution Board's requirements for H{sub 2}S emissions. The summary of this paper is that it is economical to convert from the existing abatement (iron/caustic/peroxide) to the alternative (surface condenser/Stretford) by a substantial amount. There is also amore » most economical timing sequence to accomplish the conversion to the surface condenser/Stretford abatement. The project if started immediately would be finished and operating by 1984. It is felt that the surface condenser/Stretford abatement system will ultimately meet the Air Pollution Board's requirements and improve the capacity factor of the Geysers power plant Units 1-12.« less

  • Milestone Report No. 3 is a progress report. Rogers Engineering Co., Inc. has investigated what sites are best suited for consolidation of power generating units 1 through 12 for processing the noncondensable gases through the Stretford Process for H{sub 2}S abatement below 10% of the mass flow. The consolidation arrangement for the power generating units are Units 1 through 6 which produces 187 MWe power. Units 7-8 and 11 producing 212 MWe and Units 9-10 and 12 which also produces 212 MWe power. Site survey and selection for the Stretford units provided for a primary and alternative site for eachmore » consolidation. Each of these three groups of plants is associated with its Stretford Process Plant. The gas blowers located at each power plant to push the noncondensable gases through the stainless steel pipe network to the Stretford Process have been sized. When combining the new auxiliary load requirements of these blowers and the Stretford units it was determined that additional auxiliary transformer capacity is necessary. We are investigating additional alternatives with respect to the Stretford Process application. This data will be submitted in the Final Report, See Section 6.« less

  • Milestone Report No. 1 was delivered on June 1, 1979 and related to the conversion of Units 1-4. Milestone Report No. 2 describes the conversion of Units 5-12 from direct contact condensers which use the iron-catalyst/peroxide/caustic systems to surface condensers and H{sub 2}S abatement with the Stretford Process Unit. This Report is a 10 week progress report that specifically addresses itself to the differences that are encountered between Units 5-6, 7-10 and 11-12. The task schedule shown in the Summary Section was originally presented to PG and E at the Project Kick-Off Meeting on Monday, April 23. Units 11 andmore » 12 retrofit concept which appears in this report was evaluated with a two pass surface condenser running parallel to the turbine shaft. This concept requires the relocation of the turbine lube oil tank, instrument air compressor and battery storage rack facilities. On Wednesday, June 27, the condenser supplier notified Rogers Engineering that it was feasible to design and install a four pass, two tube bundle condenser at right angle condenser to the turbine-generator shaft. The four pass condenser concept will eliminate the need of relocating equipment sensitive to turbine operation. However, schedule requirements for Milestone Report No. 2 left no time to incorporate the benefits of the concept they believe will be recommended by Rogers. It will appear in the Final Milestone Report No. 4.« less

  • The purpose of this work is to demonstrate whether there is a cost benefit to Pacific Gas and Electric Company in replacing the present iron catalyst/caustic/peroxide system used in the direct contact condenser units versus an alternative approach using surface condensers and the Stretford System.