Gas Reburning-Sorbent Injection (GR-SI): development status and field evaluation plan. Topical report, September 1986-August 1987

Technical Report · Sat Aug 01 04:00:00 EDT 1987

OSTI ID:6672787

Bartok, W; Folsom, B; Lanier, S; Payne, R

This report reviews the technical basis for Gas Reburn-Sorbent Injection (GR-SI) technology for NOx/SOx control using a combined technology in which NOx is controlled from coal-fired boilers by the replacement of a portion of the coal feed by natural gas. The natural gas is injected in a manner that yields a chemical NOx reduction. Calcium based sorbents are injected into the upper furnace to absorb SO/sub 2/. An added benefit of natural gas reburning is the reduction in the mass of ash that is imposed on the boiler. The results of extensive subscale tests are reviewed to provide a current overview of the technical basis for GR-SI. At present, natural gas reburning can be optimized to yield at least a 60% NOx emission reduction. The optimized injection of calcium hydroxide will easily capture at least 50% of the SO/sub 2/. The report concludes by reviewing demonstration plans at the three Illinois power plant sites.

• Research Organization: Energy and Environmental Research Corp., Irvine, CA (USA)
• OSTI ID: 6672787
• Report Number(s): PB-89-102784/XAB
• Country of Publication: United States
• Language: English

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