Study on chemical kinetics and catalytic cracking of tar from gasification of rice straw using various catalysts

A review of the thermochemistries of biomass gasification and utilisation of gas products

“…149,158 Studies have also reported waste byproducts including char, derived from thermochemical processing of biomass and solid organic products, as reliable, low cost, sustainable alternatives to commercially available catalysts. 160 Ex situ catalytic systems for tar reduction or elimination have recently combined both catalytic cracking and physical methods such as hot vapour ltration, 161 to reduce energy composition via heating and cooling cycles and to convert tar into syngas and to increase the gasication efficiency. [161][162][163] These hot gas catalytic lters have found practical application for tar reforming, ammonia elimination and particulate elimination 164 during biomass gasication.…”

“…160 Ex situ catalytic systems for tar reduction or elimination have recently combined both catalytic cracking and physical methods such as hot vapour ltration, 161 to reduce energy composition via heating and cooling cycles and to convert tar into syngas and to increase the gasication efficiency. [161][162][163] These hot gas catalytic lters have found practical application for tar reforming, ammonia elimination and particulate elimination 164 during biomass gasication. Catalytic lters are either presented as a solid xed catalytic bed or a cylindrical lter candle with catalytic foam coating inside.…”

“…These impurities are oen removed by mechanical and physical techniques. [161][162][163] The techniques involve either an absorption or an adsorption process. Absorption was reported to be more effective in heavy tar removal processes, while the adsorption technique was found more benecial in light tar removal processes.…”