MSW derived syngas utilization in combination with distributed energy supply system: mode selection and evaluation
June 5-10, 2016
Syngas from MSW gasification and pyrolysis are characterized through a rotary kiln reactor followed by a gas scrubber, the components and energy & chemicals for cleaning the syngas were qualified. Then the syngas utilization modes in combination with distributed energy supply system are evaluated.
For the separated MSW sample with dry-basis higher heat value (HHV) of 15.23MJ/kg, the HHV of pyrolysis syngas is higher than 15 MJ/kg. When combined with distributed energy supply system, the syngas is cleaned first to remove dust, tar and harmful components such as NH3 and H2S, then is used to supply power & heat. Based on a downtown district in a northern city in China, the syngas from pyrolysis of 43.34 ton/d separated MSW is assumed to generate power & heat through 4 routes, as shown in Fig.1:
l burning in a gas engine (1);
l burning in a gas turbine (2);
l direct combustion in a furnace to generate steam followed by a steam turbine (3);
l undergoing separation to obtain pure CH4 or H2 for industrial applications as avoidance of pure gas production or utilization in fuel cell (4).
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Ming Chen, Dezhen Chen, Yuyan Hu, and Lijie Yin, "MSW derived syngas utilization in combination with distributed energy supply system: mode selection and evaluation" in "Life Cycle Assessment and Other Assessment Tools for Waste Management and Resource Optimization", Professor Umberto Arena, Second University of Naples, Italy Professor Thomas Astrup, Denmark Technical University, Denmark Professor Paola Lettieri, University College London, United Kingdom Eds, ECI Symposium Series, (2016). https://dc.engconfintl.org/lca_waste/29