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Table 2 Common types of gasifiers investigated in recent studies of gasification of biowaste

From: Waste to bioenergy: a review on the recent conversion technologies

Type of gasifier Advantages Type of feedstocks Operating temperature (°C) References
Fixed bed gasifier High tolerance of ash content.
Able to withstand high moisture content feedstock.
Low tar accumulation.
Minimum sensitivity towards feedstock size and quantity.
Wood 800–900 [66]
Sawdust 650–960 [67]
Palm shell 750 [68]
Sewage sludge 800 [27]
Fluidized bed gasifier High heat transfer rate.
Thorough mixing of feedstock and bed material.
Moderate requirements of gasification medium
Pine woodchips 700–900 [23]
Beech wood 750–850 [69]
Rice straw 600–800 [26]
Wood and bark waste 300–400 [70]
Entrained flow Flexibility types of feedstock.
Short processing time.
Uniformity of temperature throughout reactor.
Low tar production in gas.
Straw biomass 900 [71]
Jatropha curcas shell 1000 [72]
Bituminous coal and wheat straw 1300 [73]
Empty fruits bunch 900 [65]
Plasma Capable to treat both hazardous and non-hazardous wastes.
Nontoxic method to destroy hazardous waste.
Easy removal of ash as slag.
MSW and plastic solid waste 1250–1315 [74]
Biomedical waste 1326 [75]
Hazardous waste from oil and gas 1500 [24]