Co-firing RDF and natural gas in a cement kiln

Technical Report · Thu Jan 01 04:00:00 EST 1976

OSTI ID:7004587

Jones, J R

Eight samples of refuse derived fuel (RDF) ash have been generated from Houston solid waste. The Portland Cement Association (PCA) has completed chemical analysis of seven ash samples and the raw materials (clay, iron ore, and limestone) from the test cement plant. The analyses have been used by PCA personnel in calculation of mix designs for both an electric furnace burn and a pilot kiln burn. Both were based on a 40% substitution of RDF for natural gas on a BTU basis. Analysis of the clinker produced during the laboratory burns indicates slight differences from production clinker. The strength of the test clinker is comparable to the production clinker but some differences in the chemical composition indicates further testing may be warranted. Overall results are very positive though that the clinker may be able to accommodate RDF ash when the fuel substitution on a BTU basis is as high as 40%. The improvements to the Houston recovery plant are virtually complete with the only exception being the test air separation system (Rotary Drum Air Classifier System RODACS). The fuel receiving/feed system at the test plant is installed and operative. An initial run to gain experience in feed rate control is currently scheduled in early February. The initial extended trial burn will very likely be scheduled for early March due to the start-up difficulties with the RODACS plus a downtime period of 10--15 days scheduled to begin at the test plant in mid-February.

• Research Organization: Environmental Equipment Corp., Houston, TX (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-76CS40083
• OSTI ID: 7004587
• Report Number(s): DOE/CS/40083-T3; ORO--5150-2; ON: DE92041002
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
034000 -- Natural Gas-- Combustion
09 BIOMASS FUELS
092000* -- Biomass Fuels-- Combustion-- (1990-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ASHES
BUILDING MATERIALS
CARBONATE ROCKS
CEMENT INDUSTRY
CEMENTS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CLAYS
COCOMBUSTION
COMBUSTION
COMBUSTION PRODUCTS
DATA
DOCUMENT TYPES
ENERGY SOURCES
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL SUBSTITUTION
FUELS
GAS FUELS
GASES
INDUSTRY
INFORMATION
IRON ORES
LIMESTONE
MATERIALS
NATURAL GAS
NUMERICAL DATA
ORES
OXIDATION
PROGRESS REPORT
RAW MATERIALS
REFUSE DERIVED FUELS
RESIDUES
ROCKS
SEDIMENTARY ROCKS
THERMOCHEMICAL PROCESSES
WASTE PRODUCT UTILIZATION