In-depth Documentation
We offer technical, financial, and supporting information available here. Please feel free to download and peruse any of the following...
State of California Integrated Waste Management Board
Technology Evaluation and Economic Analysis of Waste Tire Pyrolysis, Gasification, and Liquefaction
"Pyrolysis, gasification, and liquefaction (PGL) represent a viable alternative for the disposal of scrap tires (also referred to as "waste tires" in this report). These technologies are currently used for the conversion of carbonaceous materials more extensively in Europe and Japan than in California, but may become more important as the supplies of natural fuels become depleted. The objective of this report was to assess the technological, environmental, and economic features of the application of PGL to process scrap tires.
"The ability to produce a range of products can add to the marketability of a PGL system. Products resulting from PGL processes include electricity, chemicals, and diesel fuel, as well as residual carbon black. The products can be used to expand the current uses of scrap tires that include retreading, civil engineering applications, and TDF. Estimates were made of the potential value of scrap tires transformed by PGL in terms of electricity, fuels, and other products. It was found that a hypothetical tire PGL facility with a capacity of 5 million tires per year can produce a gross revenue of over $13.2 million per year, from the combined sales of $9.4 million from synthetic diesel fuel, $1.25 million from the sale of process heat at natural gas equivalent prices, $1.7 million from the sale of off-peak electricity, and $0.8 million from the sale of the recovered steel. On a per-tire basis, the product costs ranged from $2.63 for gasification to $1.29 for liquefaction. Capital costs for PGL facilities were found to range from $621 to $828 per metric ton per year"
(download the PDF to read more)
M. Snow and K. López
Pyrolysis Transformation of Organic Wastes—Results of Full-Scale Trial Demonstrations
"Pyrolysis gasification of organic wastes has been under development for over 20 years as a method to process organic wastes. The process involves the gasification under vacuum of solid and liquid organic wastes into syngas or oil fuel streams and inorganic residuals. Historically, the technology has struggled to demonstrate technical and financial viability. This paper describes the initial results of full-scale trial demonstrations conducted using the Simeken Inc. pyrolysis technology to process wood wastes and scrap tires. The initial performance of the technology to process these wastes is presented in terms of air emissions quality, energy throughput, and quality of carbon char generated. Finally, a preliminary financial model is presented for a candidate project in Mexico."