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Steam gasification of coal cokes by internally circulating fluidized-bed reactor by concentrated Xe-light radiation for solar syngas production

Author:
Gokon, Nobuyuki, Izawa, Takuya, Kodama, Tatsuya
Source:
Energy 2015 v.79 pp. 264-272
ISSN:
0360-5442
Subject:
carbon, carbon dioxide production, carbon monoxide, coal, energy, fluidized beds, gasification, hydrogen, optics, prototypes, steam, synthesis gas
Abstract:
A laboratory-scale prototype windowed reactor using a fluidized bed of coal coke particles was tested for thermochemical gasification using concentrated Xe light radiation as an energy source. The fluidized-bed reactor, designed to be combined with a solar reflective tower or beam-down optics, is evaluated for steam gasification of coal coke according to gasification performance: CO, H2, and CO2 production rates; carbon conversion; light-to-chemical efficiency. Internal circulation of coal coke particles inside the reactor increases gasification performance, which is further enhanced by higher steam partial pressure of the inlet gas.
Agid:
6035933