AN ENVIRONMENTALLY SOUND PROCESS FOR UTILIZING WASTE TIRE-DERIVED FUEL AND RAILROAD-TIE-DERIVED FUEL IN COAL-FIRED STOKER BOILERS

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$74,872.00
Award Year:
1993
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
20994
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Reaction Engineering
77 W 200 S #416, Salt Lake City, UT, 84101
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr N Stanley Harding
(801) 328-6925
Business Contact:
() -
Research Institution:
n/a
Abstract
THE UNITED STATES HAS A LARGE BACKLOG OF WASTE TIRES AND RAILROAD TIES, GROWING AT A RATE OF APPROXIMATELY 240 MILLION TIRES/YEAR AND 14 MILLION RAILROAD TIES/YEAR. THESE WASTE FUELS EXPRESENT A SIZABLE RESOURCE. CURRENTLY OVER 80% ARE LANDFILLED, CONSTITUTING LOSS OF A SIGNIFICANT RESOURCE AND CREATING A MAJOR ENVIRONMENTAL PROBLEM. THE OBJECTIVES OF THIS PROJECT ARE TO IDENTIFY BARRIERS TO THE SUCCESSFUL BLENDING OF COAL WITH WASTE TIRES AND RAILROAD TIES IN STOKER-FIRED BOILERS, AND IDENTIFY PROCESS PARAMETERS THAT WILL ENABLE COAL/TIRE-DERIVED FUEL (TDF) AND COAL/RAILROAD-TIE-DERIVED FUEL (RTDF) COMBINATIONS TO PRODUCE TOTAL EMISSIONS WITHIN ENVIRONMENTAL REGULATIONS. IN PHASE I, SERIES OF EXPERIMENTS WILL BE CARRIED OUT IN A PILOT-SCALE STOKER TO ESTABLISH MAXIMUM WASTE TIRE AND RAILROAD TIE REPLACEMENT RATE AS A FUNCTION OF CHIP SIZE; OPTIMUM FEED LOCATION, OVERFIRE/UNDERFIRE AIR RATIO; OPTIMUM GAS/TDF CO-FIRING RATIO (IF NECESSARY); EFFECT OF TDFAND RTDF ON CRITERIA FOR POLLUTANT EMISSIONS, TRACE HYDROCARBONS, PARTICULATE MATTER, AND METALS; AND IMPACT OF TIRE BELTS ON GRATE DUE TO INTERACTION WITH COAL ASH. THIS PROJECT WILL DEFINE THE POTENTIAL FOR COAL/TDF AND COAL/RTDF CO-FIRING BASED ON TECHNICAL PERFORMANCE AND ECONOMIC CONSIDERATIONS ANDWILL ESTABLISH PROCESS DESIGN PARAMETERS THAT WILL BE USED IN THE DESIGN OF AN OPTIMM COAL/TDF OR COAL/RTDF STOKER SYSTEM. IN ADDITION, THE PROJECT WILL DOCUMENT ADVANTAGES TO THE INDUSTRIAL CUSTOMER THAT RESULT FROM COFIRING.

* information listed above is at the time of submission.

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