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Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere

Long, Xiangyi; Skoulou, Vicky; Paterson, Nigel; Agorio-Millan, Marcos

Authors

Xiangyi Long

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Dr Vicky Skoulou V.Skoulou@hull.ac.uk
Director of Research of Chemistry Department and Chemical Engineering Department ; Senior Lecturer (Assoc. Prof.) in Chemical Engineering-Bioenergy ; PI of the B3: Biomass Waste- BioenergH2- Biochars Challenge Group of PGRs and PDRAs

Nigel Paterson

Marcos Agorio-Millan



Abstract

The oxyfuel gasification concept enables a N2 free gas to be obtained by fluidised bed gasification (FBG). This process uses CO2 to moderate the bed temperature and thus agglomeration. An alternative cooling medium is steam, which could be employed as a single gasification agent, or in a mixture with CO2. However, the impact of different steam to CO2 ratios in the product distribution and operatability of the gasifier needs to be investigated. In this context, the present study focused on the fluidized bed gasification of German lignite with steam/CO2 mixtures as gasification medium under different operating conditions of temperature and pressure. A continuous high-pressure laboratory-scale, fluidised bed reactor was used for evaluating the gasification performance of this fuel.The effect of a gasification agent consisting of different steam to CO2 ratios at different conditions of temperature (750-950oC), pressure (up to 10 bar)and gas to fuel ratio (steam and steam/CO2) was assesed. By varying the operational conditions, it is expected that the process can be tailored to produce syngas of different compositions, which in turn can be used for different applications ranging from H2 generation for utilization in solid oxide fuel cells (SOFC) to production of chemicals and power generation.

Citation

Long, X., Skoulou, V., Paterson, N., & Agorio-Millan, M. (2014, September). Production of syngas by pressurized fluidized bed gasification of German Lignite in a H2O/CO2 atmosphere. Presented at 10th European Conference on Coal Research and its Applications (10th ERCCIA)

Presentation Conference Type Speech
Conference Name 10th European Conference on Coal Research and its Applications (10th ERCCIA)
Start Date Sep 15, 2014
End Date Sep 17, 2014
Deposit Date Jul 2, 2018
Keywords fluidized bed, gasification, coal, syngas, steam, CO2
Public URL https://hull-repository.worktribe.com/output/905652
Related Public URLs http://www.maggichurchouseevents.co.uk/ferf/past-events/Downloads/1B1%20Long%20Xiangyi.pdf