Characterization and pilot scale fluidized bed gasification of herbaceous biomass: A case study on alfalfa pellets

Semi-continuous feeding and gasification of alfalfa and wheat straw pellets in a lab-scale fluidized bed reactor

“…(5)) and exothermic carbon partial oxidation (Eq. (7)) which agree with the recent pilot-scale study [21] conducted for the same feedstock. However, ER > 0.30 perhaps concurrently decreased the severity of Boudouard reaction (Eq.…”

“…The literature work entirely devoted to the gasification of alfalfa is scarce, and thus not many relevant data are available. Hence just the two important recent works [20,21] including the present work are considered for comparison. As observed in Table 4, significant differences in-terms of gas compositions and other parameters are established among these studies.…”

“…The higher ash content in alfalfa was presumably because of the higher level of phosphorous, potassium and nitrogen, as found in its chemical composition (Table 1). Although higher level of ash, earlier pilot scale experiments on the same feedstock (alfalfa pellets) did not encounter operational difficulties [21] in regards to agglomeration, sintering, etc. and hence provided motivation to extend the investigation towards small scale application, such as the investigation in the context of the present study.…”

“…This leaves opportunity for this feedstock to exploit into the energy conversion, besides as a fodder crop. In fact, many literatures have already evaluated the potential of lignocellulosic alfalfa in several areas, especially towards production of second generation (2G) biofuel [17] in respect to the environmental [15] and to the economic aspects [18], and characterization [19], and scarcely to gasification using fixed bed downdraft gasifier [20] and recently through pilot-scale bubbling fluidized bed gasifier [21]. The motivation of using alfalfa as a feedstock for biofuel production favors predominantly due to the agro-ecological conditions, i.e.…”

A Systematic Approach for Biofuel Production from Household Leftovers by Thermochemical Decomposition

“…purchasing heater and installation are highly complicated. Biomass is highly labour concentrated than customary gas or oil establishments unless a container is used to keep it finished up with pellets or chips [15,16]. It's actually that bio-pellet boiler should get clean frequently after every use.…”