Lignite Gasification in Thermal Steam Plasma
- 141 Downloads
Recycling of organic waste is an increasingly hot topic in recent years. This issue becomes even more interesting if such processing leads to a source of hydrogen or syngas for fuel production. A process of high-temperature decomposition of lignite was studied on the plasma gasification reactor PLASGAS, where water-stabilized plasma torch was used as a source of high-enthalpy plasma. The plasma torch power was 120 kW and allowed heating of the reactor to more than 1000 °C. The material feeding rate in the gasification reactor was 30 or 60 kg per hour that is comparable to a small industrial production process. The efficiency evaluation of the thermal decomposition process was performed. Energy balance of the process was carried out as well as an influence of the lignite particle size and the addition of methane (CH4) on the synthesis gas composition. The ratio H2/CO was in the range of 1.5–2.5 depending on the experimental conditions.
KeywordsLignite Plasma treatment Water-stabilized plasma torch Synthesis gas production Atmospheric pressure
The authors gratefully acknowledge support of the Grant Agency of CR under the Project Numbers GA15-19444S and GC17-10246J.
- 1.Boerrigter H, van der Drift B (2005) “Biosyngas” key-intermediate for production of renewable transportation fuels, chemicals and electricity. In: 14th European biomass conference and exhibition, Paris. ECN report ECN-RX-05-181Google Scholar
- 5.Wu SY, Gu J, Li L, Wu YQ, Gao JS (2006) Gasification reactivity of rapid and slow pyrolyzed Shenfu chars with CO2 at high carbon conversions and elevated temperatures. J Fuel Chem Technol 34:339e43Google Scholar
- 12.Heidenreich S, Foscolo PU, Nacken M, Rapagna S (2008) Gasification apparatus and method for generating syngas from gasifiable feedstock material. PCT Patent Application PCT/EP2008/003523Google Scholar
- 28.Qiu J, He X, Sun T, Zhao Z, Zhou Y, Guo S et al (2004) Coal gasification in steam and air medium under plasma conditions: a preliminary study. Fuel Process Technol 85:969e82Google Scholar
- 35.Hrabovsky M (2011) Progress in biomass and bioenergy production. https://doi.org/10.5772/18234