Hydrogen production from municipal solid waste

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We have modified a Municipal Solid Waste (MSW) hydrothermal pretreatment pilot plant for batch operation and blowdown of the treated batch to low pressure. We have also assembled a slurry shearing pilot plant for particle size reduction. Waste paper and a mixture of waste paper/polyethylene plastic have been run in the pilot plant with a treatment temperature of 275{degrees}C. The pilot-plant products have been used for laboratory studies at LLNL. The hydrothermal/shearing pilot plants have produced acceptable slurries for gasification tests from a waste paper feedstock. Work is currently underway with combined paper/plastic feedstocks. When the assembly of the Research ... continued below

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21 p.

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Wallman, P.H.; Richardson, J.H. & Thorsness, C.B. June 28, 1996.

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Description

We have modified a Municipal Solid Waste (MSW) hydrothermal pretreatment pilot plant for batch operation and blowdown of the treated batch to low pressure. We have also assembled a slurry shearing pilot plant for particle size reduction. Waste paper and a mixture of waste paper/polyethylene plastic have been run in the pilot plant with a treatment temperature of 275{degrees}C. The pilot-plant products have been used for laboratory studies at LLNL. The hydrothermal/shearing pilot plants have produced acceptable slurries for gasification tests from a waste paper feedstock. Work is currently underway with combined paper/plastic feedstocks. When the assembly of the Research Gasification Unit at Texaco (feed capacity approximately 3/4-ton/day) is complete (4th quarter of FY96), gasification test runs will commence. Laboratory work on slurry samples during FY96 has provided correlations between slurry viscosity and hydrothermal treatment temperature, degree of shearing, and the presence of surfactants and admixed plastics. To date, pumpable slurries obtained from an MSW surrogate mixture of treated paper and plastic have shown heating values in the range 13-15 MJ/kg. Our process modeling has quantified the relationship between slurry heating value and hydrogen yield. LLNL has also performed a preliminary cost analysis of the process with the slurry heating value and the MSW tipping fee as parameters. This analysis has shown that the overall process with a 15 MJ/kg slurry gasifier feed can compete with coal-derived hydrogen with the assumption that the tipping fee is of the order $50/ton.

Physical Description

21 p.

Notes

OSTI as DE96013154

Source

  • 1996 annual hydrogen peer review for DOE, Miami, FL (United States), 1-3 May 1996

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  • Other: DE96013154
  • Report No.: UCRL-JC--124574
  • Report No.: CONF-9605195--2
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 266888
  • Archival Resource Key: ark:/67531/metadc667168

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  • June 28, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Feb. 23, 2016, 1:41 p.m.

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Wallman, P.H.; Richardson, J.H. & Thorsness, C.B. Hydrogen production from municipal solid waste, article, June 28, 1996; California. (digital.library.unt.edu/ark:/67531/metadc667168/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.