Performance of tar removal by absorption and adsorption for biomass gasification

Influence of Pyrolysis Temperature on Rice Husk Char Characteristics and Its Tar Adsorption Capability

“…This measured heavy tar was defined as gravimetric tar. This tar measurement method has been well described in the previous work [8]. The ash product remained at the bottom of the pyrolyzer throughout the sampling time of 48 min.…”

“…In our previous paper [8], gasified rice husk char was proved to be capable of tar removal. Moreover, many researchers have reported their works on the tar removal performance of biomass char in gasification processes, which was also reviewed in the previous papers [8][9][10][11][12], confirming that rice husk char is capable of tar removal. In this research, the tar removal ability of each char produced from different pyrolysis temperature was investigated.…”

Catalytic reforming of pyrolysis tar over metallic nickel nanoparticles embedded in pyrochar

“…However, the catalytic activities of dolomite and olivine for tar conversion leave room for improvement, so the motivation is the search for catalytic additives [15]. Recently, chars derived from coal or biomass have been used as low-cost carbonaceous catalysts [16][17][18][19][20] and adsorbents [21][22][23] in tar elimination. Char itself exhibits a fair catalytic activity for tar reforming, which is often influenced by pore size, surface area and mineral contents.…”

Ultra-microporous membrane separation using toluene to simulate tar-containing gases

“…Tar generation is also common in coal gasification processes [8,9]. The raw syngas from a circulating bed gasifier can be expected to contain around 15 g Nm -3 of tar [10], and with downstream processing and wet scrubbing such as absorption/adsorption [11] or catalytic decomposition [12,13], this may be reduced to around 1 g Nm -3 .…”