Optimum Operating Condition for Co-Gasification - A Thermodynamic Study

Title:Optimum Operating Condition for Co-Gasification - A Thermodynamic Study

Volume: 11 Issue: 1

Author(s): Ganesh R. Kale*, Suhas D. Doke and Atul N. Vaidya

Affiliation:

• Solid and Hazardous Waste Management Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur-440020,India

Keywords: Coal-biomass co-gasification, thermoneutral temperature, optimum temperature, carbon conversion, co-gasification, hundred percent carbon conversion.

Abstract: Background: Gasification is a popular process for producing syngas from solid fuels. The focus has nowadays shifted to co-gasification using a mixed feed of coal and biomass. An optimum gasifier operating condition (OGOC) is an extremely important process parameter for gasification system.

Method: A thermodynamic analysis was done to calculate this condition for co-gasifier operation. The relative product gas generation trends in co-gasification were compared with the single feed coal gasification in this study.

Conclusion: An OGOC of 618°C with CO2 feed of 0.6475 moles and H2O feed of 1.3525 moles was found to be the best condition for co-gasifier operation producing 1.6429 moles of syngas (of syngas ratio 1.5905) and 54.96% H2O conversion with the gasifier product gas containing over 61% syngas. Such OGOC can be found for gasification systems ensuring the advantages of thermoneutral operation as well as 100% carbon conversion.

Cite this article as:

Kale R. Ganesh *, Doke D. Suhas and Vaidya N. Atul , Optimum Operating Condition for Co-Gasification - A Thermodynamic Study, Recent Innovations in Chemical Engineering 2018; 11 (1) . https://dx.doi.org/10.2174/2405520411666180406151246