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Global Climate Change Digest

A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999



Item #d91sep48

Engineering and Economic Evaluation of CO2 Removal from Fossil-Fuel-Fired Power Plants. Vol. 1: Pulverized-Coal-Fired Power Plants (EPRI IE-7365, Vol. 1), 160 pp., June 1991, $500 (EPRI nonmembers). Order from EPRI Res. Rep. Ctr., POB 50490, Palo Alto CA 94303.

Assessed the impact of CO2 removal and disposal on the design, performance and cost of pulverized-coal-fired power plants. Removal of CO2 is technically feasible, but very expensive, and would reduce the net power output by about 35%. Full-scale implementation would increase the cost of coal-fired power by a factor of 2.0-2.6.

Item #d91sep49

_____________Vol. 2: Coal Gasification-Combined-Cycle Power Plants (EPRI IE-7365, Vol. 2), 124 pp., June 1991, $500 (EPRI nonmembers).

Analysis similar to that in Volume 1 showed that removal, recovery and disposal of CO2 is also technically feasible but expensive. The net power output for the CO2-removal plant is 88% of the reference plant. Relative to a conventional GCC plant, the cost of electricity would be increased by a factor of 1.6-1.7.

Item #d91sep50

Seaweeds and Halophytes to Remove Carbon from the Atmosphere (EPRI ER/EN-7177), 84 pp., Feb. 1991, $25 (EPRI nonmembers)/$50 (overseas).

The total area of coastal desert and inland saline land available for halophyte plantations is about 1.3 x 106 km2; a comparable area of the continental shelf is available for seaweed plantations. Both seaweeds and halophytes are comparable to trees in production rates; however, the costs of seaweed plantations are currently prohibitive, but the costs of halophyte plantations are comparable to tree plantations. Storage or use of the accumulated biomass is discussed.

Item #d91sep51

Mass Culture of Algae Using Carbon Dioxide from Stack Gases (EPRI GS-7029), 104 pp., Oct. 1990, $32.50/65.

Algae can metabolize stack gas directly from a diesel-fired plant. Bubbling of CO2 proved to be a more effective method of transferring it into the culture than carbonation. Available land area is one factor limiting practical application.

Item #d91sep52

Advances in Solid Fuels Technologies (GOO522), 1991, $12/$24 (nonmembers). Amer. Soc. Mech. Eng., Order Dept. (800-843-2763; 201-882-1167). Contains a paper, "Potential CO2 Emissions Reduction Processes," by R. Pruschek and G. Oeljeklaus.

Item #d91sep53

Fuel Cycle Framework for Evaluating Greenhouse Gas Emission Reduction Technology (PNL-SA-18223), W.B. Ashton (Battelle Pac. Northwest Labs., Richland, Wash.), D.W. Barns, R.A. Bradley, 24 pp., May 1990. NTIS: DE91-004068; $13.95. Nat. Tech. Info. Serv., 5285 Port Royal Rd., Springfield VA 22161 (703-487-4650).

Describes a generic fuel cycle framework to catalog emission source technologies and evaluate technological solutions for reducing greenhouse gas emissions. Notes that evaluating fuel mix tradeoffs is important; for instance, while substituting natural gas for coal or oil to reduce CO2 emissions, natural gas emissions of methane in the production phase of the fuel cycle could increase.

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