Department of Biological Systems Engineering, Washington State University, Richland, WA 99354-1671, USA.
Department of Biological Systems Engineering, Washington State University, Richland, WA 99354-1671, USA.
Bioresour Technol. 2021 Jan;320(Pt A):124352. doi: 10.1016/j.biortech.2020.124352. Epub 2020 Nov 2.
The remarkable enhancement of phenolic monomer generation and hydrogen was achieved through catalytic pyrolysis of Douglas fir over nanocellulose derived biochar catalyst for the first time. The main compositions of produced bio-oil were phenolic monomers, furans, and naphthalenes, etc., in which the phenolic monomers were dominant compositions. And at the temperature of 650 °C and 3 of biochar to biomass ratio, the quantification results showed that the concentration of phenol was increased to 53.77 mg/mL from 15.76 mg/mL of free of biochar catalyst. The concentration of cresols were facilitated to 44.51 mg/mL from 20.95 mg/mL, while the concentration of dimethylphenols reduced to 7.76 mg/mL from 9.11 mg/mL. Up to 85.32 vol% of hydrogen was observed, increasing from 45.53 vol% of the non-catalytic process. After 15 cycles of reuse, biochar catalysts still favored to produce a much higher concentration of phenolic monomers and hydrogen than that of absence of biochar catalysts.
首次通过纳米纤维素衍生的生物炭催化剂催化热解花旗松，实现了酚单体和氢气的显著增强。所产生的生物油的主要成分是酚单体、呋喃和萘等，其中酚单体是主要成分。在 650°C 和生物质与生物炭的比例为 3 的温度下，定量结果表明，添加生物炭催化剂后，酚的浓度从无催化剂时的 15.76mg/mL 增加到 53.77mg/mL。甲酚的浓度从 20.95mg/mL 提高到 44.51mg/mL，而二甲苯酚的浓度从 9.11mg/mL 降低到 7.76mg/mL。观察到高达 85.32vol%的氢气，比非催化过程中的 45.53vol%有所增加。经过 15 次重复使用循环后，生物炭催化剂仍然有利于产生比没有生物炭催化剂时更高浓度的酚单体和氢气。
