Acid washed lignite char supported bimetallic Ni-Co catalyst for low temperature catalytic reforming of corncob derived volatiles

Effect of La2O3 promotion on a Ni/Al2O3 catalyst for H2 production in the in-line biomass pyrolysis-reforming

“…Moreover, the use of alternatives supports, such as olivine [30], limonite [31], silica based materials like SBA-15, MCM-41 [32,33] or carbon based supports [34][35][36][37], are gaining increasing attention due to their lower cost. Yang et al [38] investigated the production of H 2 in the catalytic reforming of corncob pyrolysis volatiles using Ni, Co and Ni-Co based catalysts supported on acid washed Shengly lignite (AWSL), and attained the highest H 2 production (7.26 wt. %) when they used the bimetallic catalyst.…”

Understandings of Catalyst Deactivation and Regeneration during Biomass Tar Reforming: A Crucial Review

“…XRD characterization proved the Ni-Ce alloy formation in 50Ni-Ce/modified lignite char, which therefore exhibited a stable gas yield (69.1%) and the lowest carbon deposition (1.7% weight increasing) under an inert atmosphere. Furthermore, we found that Co addition is also helpful in increasing catalyst activity and stability . The synergy effect of Ni (111) and Co (220) are beneficial to gas release and tar conversion, and carbon deposition was therefore inhibited.…”

“…They found partial metal oxides that can be in situ-reduced through biochar and reducing gas (i.e., H 2 and CO), and tar conversion can reach 92.3% and 93% over Ni-Fe/rice rusk char (without calcination) and Ni/rice rusk char (with calcination) under optimized conditions, respectively. For the same reason, our group synthesized a series of advanced lignite char catalysts without reduction treatment and proved that they were active for biomass tar reforming. ,,− Interestingly, we previously synthesized a novel Ni-based resin char via the ion-exchange method and found it was active for corncob tar cracking at low temperature . The results revealed Ni-based resin char prepared at pH of 11 and calcined at 650 °C had the biggest SSA of 213 m 2 /g and smallest Ni crystallite size of 5.7 nm.…”

Effect of lignite as support precursor on deep desulfurization performance of semicoke supported zinc oxide sorbent in hot coal gas

“…The surface of lignite is rich in oxygen-containing groups such as carboxyl and phenolic hydroxyl groups, which can act as cation-exchange site. 32,33 The zinc ion could be loaded on the lignite by ion exchange. Therefore, oxygen-containing groups of raw lignite may be another factor affecting Zn loading content.…”