Direct synthesis of methane-rich gas from reed biomass pyrolysis volatiles over its biochar-supported Ni catalysts

Transition Metal‐Promoted Carbon‐Silicon Solid Acid Catalysts for the Synthesis and Process Optimization of Benzaldehyde Glycol Acetal

“…However, these carbon‐based solid acid catalysts had drawbacks, such as severe loss of acid sites during catalytic reactions, leading to poor reusability and hence inferior for practical industrialization [19] . More recently, transition metals incorporated inorganic metal oxides as novel solid acid catalysts have drawn new research attentions for various catalytic applications mostly owing to not only their excellent thermal stability, long life, high catalytic selectivity, but also the presence of oxygen vacancies, which render prevailing catalytically active sites [20,21] . Among various transition metals examined, Fe‐promoted solid‐acid catalysts were found to exhibit superior catalytic performances [22,23] .…”

“…[19] More recently, transition metals incorporated inorganic metal oxides as novel solid acid catalysts have drawn new research attentions for various catalytic applications mostly owing to not only their excellent thermal stability, long life, high catalytic selectivity, but also the presence of oxygen vacancies, which render prevailing catalytically active sites. [20,21] Among various transition metals examined, Fe-promoted solidacid catalysts were found to exhibit superior catalytic performances. [22,23] Meanwhile, it was available due to extensive studies on catalyst preparation methods to fabricate metalpromoted solid acid catalysts by means of the sol-gel method, [24][25][26][27] which is known to be a favorable route for fabricating catalysts with uniform dispersion of active sites as well as ultra-fine particle sizes, has been widely recognized.…”

Products distribution during in situ and ex situ catalytic fast pyrolysis of Chinese herb residues

“…Ni-Fe based catalyst have been widely reported due to their excellent mutual promotion catalytic performance in tar cracking and gas upgrading (He et al, 2020;Liang et al, 2020;Wang et al, 2011). Yue et al (Yue et al, 2021) synthesised a biocahr-supported Ni caralysts to obtained methane-rich gas and found it conductive to the tar coverted into gas production. Lu et al (Lu et al, 2021) have investigated the deactivation of Fe catalyst and they found it would been wrapped and covered by coke during the catalytic pyrolysis, which is the main reason for restraining the activity of Fe catalyst.…”