Multi-stage biomass gasification in Internally Circulating Fluidized-bed Gasifier (ICFG): Test operation of animal-waste-derived biomass and parametric investigation at low temperature

Pyrolysis/reforming of rice husks with a Ni–dolomite catalyst: Influence of process conditions on syngas and hydrogen yield

“…Similarly the H2 yield shown in Table 2, increased from 22.31 mmoles g -1 of rice husk for 2 ml h -1 steam flow rate to 27.86 mmoles g -1 of rice husk for 10 ml h -1 steam flow rate. Similar trends were reported by Xiao et al [35,36].…”

“…Xiao et al [35] also reported an increase in gas yield with the increase in stream to carbon ratio during the two-stage gasification/reforming of wood chips and pig compost in a fluidized bed reactor. A decrease in tar contents with the increase in steam to feedstock ratio was reported by Xiao et al [36].…”

Discrete element study of solid circulating and resident behaviors in an internally circulating fluidized bed

“…Due to the small gas flow rate introduced into the HEC, the fluidizing quality of solid phase in this chamber is not so obvious. Influenced by the gas bypass into the RC from the gap below the baffle [13,25,5], particles in the HEC are driven into the RC to compensate the particles escaping from its domain above the bed surface and to sustain the continuous operation of the whole system. Solid circulation in the system can be clearly captured from the vector plot of solid velocity shown in Fig.…”

“…Compared with other fluidizing apparatuses, the ICFB exhibits many favorable advantages in the practical application, such as the reduced height and construction cost, the nice process identification, comparatively small heat loss from the system, high conservation transfer efficiency and a wide range of load control, and so on [5,6]. Thus, it has been utilized in many industrial processes, such as catalytic coal gasification [7,8], the thermal treatment of industrial solid wastes [9,10], desulfurization [11], combustion of liquid bio-fuels [12], biomass pyrolysis and gasification [13,14]. Hence, deeply understanding the hydrodynamics of the ICFB plays an important role in the design and process optimization of the system.…”

Study on the Cold Experiment of a Multi-Combined Circulating Fluidized Bed Gasification

“…The gasification chamber is mainly a bubbling bed with water vapor as fluidizing medium, and the combustion chamber is generally a fast bed with air or pure oxygen as fluidizing medium. Biomass carbon residue generated in the gasification chamber gets into the combustion chamber with the material circulation, the heat released by the combustion is circulated into the endothermic gasification chamber with the material, to achieve device self-heating, and improve the conversion rate of carbon and the thermal efficiency of the device (Xiao et al, 2010).…”