A novel small scale cogeneration concept for high temperature gasification
2008 (English)In: Air and Waste Management Association, 2008, 160-171 p.Conference paper (Refereed)
The purpose of the study is to investigate a cogeneration cycle for a gasification application. This gasification application utilizes high temperature steam to gasify waste biomass fuel. The author has modelled a simple system to produce 1000° C super heat steam for biomass conversion to a syngas. Cogeneration can provide the heat for the steam and the electricity for any auxiliary equipment used in the process. The prime mover is a microturbine of 65 kWe of electrical output. For this investigation, HiTAG will be defined as using a high temperature steam to produce a syngas from cellulose, a simplified biomass. Three experimental setups and two theoretical plants were compared, but the only setup that had potential to utilize the produced syngas in the setup was the system developed in the Royal Institute of Technology. The proposed HRSG will incorporate a honeycomb regenerator to help tackle the issue of superheating steam in atmospheric pressure where the effectiveness reaches 88%, while the heat recovery efficiencies reaches 72%. Steam is superheated by the stored heat in the honeycomb regenerator and sent to the gasifier. The syngas produced from the gasifier reactor has a high energy quality, therefore, providing many options for its use. Moreover, the use of a cogeneration cycle includes electricity generation which can further diversify the plant. In addition, low grade heat from the microturbines has plenty of uses in which to create a very comprehensive gasification plant.
Place, publisher, year, edition, pages
2008. 160-171 p.
, Air and Waste Management Association - 27th Annual International Conference on Thermal Treatment Technologies 2008, 1
Biomass, Cogeneration, Heat recovery, High temperature gasification, Microturbine, Syngas, Atmospheric pressure, Auxiliary equipment, Bioconversion, Biological materials, Cellulose derivatives, Electric generators, Electricity, Gas generators, Heat treatment, Honeycomb structures, Nuclear fuel reprocessing, Regenerators, Renewable energy resources, Steam, Turbines, Waste heat, Waste management, Waste treatment, Gasification, Barometric Pressure, Cellulose, High Temperature, Renewable Resources
Energy Engineering Energy Systems
IdentifiersURN: urn:nbn:se:kth:diva-154295ScopusID: 2-s2.0-55849134141ISBN: 9781605603797ISBN: 9781605603797OAI: oai:DiVA.org:kth-154295DiVA: diva2:757709
27th Annual International Conference on Thermal Treatment Technologies 2008, 12 May 2008 through 16 May 2008, Montreal, QC
QC 201410232014-10-232014-10-172014-10-23Bibliographically approved