Download or read book Effect of Steam Partial Pressure on Coal Char Gasification of Highveld Coal written by P. P. Maré and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final year report -- Chemical and Minerals Engineering.
Download or read book Reactivity of Heat Treated Coals in Steam written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Reactivities of seventeen 40 x 100 mesh US coals charred to 1000°C have been measured at 910°C in 0.1 MPa of a N2-H2O mixture containing water vapor at a partial pressure of 2.27 kPa. Char reactivity decreases, in general, with increasing rank of the parent coal. The chars show a 250-fold difference in their reactivities. Results suggest that gasification of chars in air, CO2 and steam involves essentially the same mechanism and that relative gasification rates are controlled by the same intermediate oxygen-transfer step. Removal of inorganic matter from raw coals prior to their charring or from chars produced from raw coals decreases the reactivities of lower rank chars whereas reactivities of higher rank chars increase. Addition of H2 to steam has a marked retarding effect on char reactivity in most cases. However, in a few cases H2 acts as an accelerator for gasification. The effect of particle size, reaction temperature and water vapor pressure on char reactivity is considered.
Download or read book Reaction of Coal with Steam at High Pressures written by and published by . This book was released on 1968 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Coal Char Gasification Kinetics and Pore Development in High Pressure Steam and Carbon Dioxide written by and published by . This book was released on 2020 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: High pressure steam and CO2 gasification kinetics -- Intrinsic reaction rates -- Pore development -- Highveld coal char.
Download or read book Pressure Carbonization of a High volatile A Bituminous Coal to Produce High BTU Gas written by and published by . This book was released on 1964 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gasification of Pulverized Coal with Steam and Oxygen at Atmospheric Pressure written by G. R. Strimbeck and published by . This book was released on 1954 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gasification Kinetics and Pore Development of a Highveld Coal Char at High Pressures written by S. F. Conradie and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final year report -- Chemical and Minerals Engineering.
Download or read book The Reaction Kinetics Involved in the Steam Gasification of Large Coal Particles written by R. Fourie and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final year report -- Chemiese en Mineraalingenieurswese.
Download or read book An analysis of coal hydrogasification processes written by Bechtel Corporation and published by . This book was released on 1977 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Pressure on the Properties of Coal Char Under Gasification Conditions at High Initial Heating Rates written by Randy Clark Shurtz and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of elevated pressure and high heating rates on coal pyrolysis and gasification were investigated. A high-pressure flat-flame burner (HPFFB) was designed and built to conduct these studies. The HPFFB was designed to provide an environment with laminar, dispersed entrained flow, with particle heating rates of ~10^5 K/s, pressures of up to 15 atm, and gas temperatures of up to 2000 K. Residence times were varied from 30 to 700 ms in this study.
Download or read book The Influence of Carbon Dioxide on the Gasification Rate of Highveld Coal Chars at Elevated Pressures written by and published by . This book was released on 2018 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: CO2 gasification -- Elevated pressure -- Highveld coal char -- Pore development.
Download or read book Pilot plant Gasification of Pulverized Coal with Oxygen and Highly Superheated Steam written by G. R. Strimbeck and published by . This book was released on 1950 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Carbon Dioxide Partial Pressure on the Reactivity of Bituminous Highveld Coals at Elevated Pressures written by M. K. Bobbert and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Final year project report -- Chemical Engineering.
Download or read book Effects of Pressure on the Properties of Coal Char Under Gasification Conditions at High Initial Heating Rates written by Randy Clark Shurtz and published by . This book was released on 2011 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of elevated pressure and high heating rates on coal pyrolysis and gasification were investigated. A high-pressure flat-flame burner (HPFFB) was designed and built to conduct these studies. The HPFFB was designed to provide an environment with laminar, dispersed entrained flow, with particle heating rates of ~10^5 K/s, pressures of up to 15 atm, and gas temperatures of up to 2000 K. Residence times were varied from 30 to 700 ms in this study.
Download or read book Coal Char Gasification Using Alkali Metal Catalysts written by Michael Joseph Veraa and published by . This book was released on 1976 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operating a Pressure gasification Pilot Plant Using Pulverized Coal and Oxygen written by John H. Holden and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Direct Production of Hydrocarbons from Coal steam Systems written by David K. Bosshardt and published by . This book was released on 1973 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
