Catalytic coal gasification: use of calcium versus potassium

Ljubisa R. Radovic, Philip L. Walker, Robert G. Jenkins

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


A comparative study is made of the relative catalytic effects of potassium and calcium on the gasification in air and 3.1 kPa steam of North Dakota lignitic chars prepared under slow and rapid pyrolysis conditions. It is indicated that potassium achieves relatively high catalytic activity by chemical interaction with the carbonaceous support, no matter how it is added to the lignite or its char. Deactivation of the catalytic potassium is brought about by interaction with inherent aluminosilicates. However, deactivation of calcium is related to its sintering via crystallite growth.

Original languageEnglish (US)
Pages (from-to)1028-1030
Number of pages3
Issue number7
StatePublished - Jul 1984

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry


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