New waste-heat refrigeration unit cuts flaring, reduces pollution
- Planetec Utility Services Co., Inc., Evergreen, CO (United States)
- Energy Concepts Co., Annapolis, MD (United States)
Planetec Utility Services Co. Inc. and Energy Concepts Co. (ECC), with the help of the US Department of Energy (DOE), developed and commissioned a unique waste-heat powered LPG recovery plant in August 1997 at the 30,000 b/d Denver refinery, operated by Ultramar Diamond Shamrock (UDS). This new environmentally friendly technology reduces flare emissions and the loss of salable liquid-petroleum products to the fuel-gas system. The waste heat ammonia absorption refrigeration plant (Whaarp) is the first technology of its kind to use low-temperature waste heat (295 F) to achieve sub-zero refrigeration temperatures ({minus}40 F) with the capability of dual temperature loads in a refinery setting. The ammonia absorption refrigeration is applied to the refinery`s fuel-gas makeup streams to condense over 180 b/d of salable liquid hydrocarbon products. The recovered liquid, about 64,000 bbl/year of LPG and gasoline, increases annual refinery profits by nearly $1 million, while substantially reducing air pollution emissions from the refinery`s flare.
- OSTI ID:
- 600025
- Journal Information:
- Oil and Gas Journal, Vol. 96, Issue 20; Other Information: PBD: 18 May 1998
- Country of Publication:
- United States
- Language:
- English
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