School of Environment, Harbin Institute of Technology, Harbin 150090, China.
School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Bioresour Technol. 2024 Feb;394:130293. doi: 10.1016/j.biortech.2023.130293. Epub 2024 Jan 4.
The effects of three catalysts, namely Ni/γ-AlO, Fe/γ-AlO, and Mg/γ-AlO, on the three-phase products of liquor-industry waste pyrolysis were investigated in this study. Results indicated that the catalytic performance of Ni/γ-AlO outperformed those of Fe/γ-AlO and Mg/γ-AlO significantly. The application of Ni/γ-AlO facilitated the reformation of pyrolysis volatiles, leading to increased yields of H (174.1 mL/g), CH (80.7 mL/g), and CO (88.2 mL/g) by 980.00 %, 133.24 %, and 83.37 %, respectively. compared to catalyst-free conditions. The Ni/γ-AlO also increased the low-level calorific value of biogas by 109.3 % compared to that under non-catalyst conditions. Moreover, Ni/γ-AlO enhanced the relative concentrations of hydrocarbons in tar by 23.15 % while reducing the relative concentrations of O-species by 15.73 % compared to catalyst-free conditions through induced deoxygenation, decarboxylation, decarbonylation reactions as well as efficient steam reforming processes for tar and syngas upgrading purposes. Thus, incorporating Ni/γ-AlO into the pyrolysis process represents a renewable approach for waste-to-energy conversion.
本研究考察了三种催化剂（Ni/γ-AlO、Fe/γ-AlO 和 Mg/γ-AlO）对白酒工业废热解三相产物的影响。结果表明，Ni/γ-AlO 的催化性能明显优于 Fe/γ-AlO 和 Mg/γ-AlO。Ni/γ-AlO 的应用促进了热解挥发物的重整，导致 H（174.1 mL/g）、CH（80.7 mL/g）和 CO（88.2 mL/g）的产率分别提高了 980.00%、133.24%和 83.37%，与无催化剂条件相比。与无催化剂条件相比，Ni/γ-AlO 还将沼气的低热值提高了 109.3%。此外，通过诱导脱氧、脱羧、脱羰反应以及焦油和合成气升级的有效蒸汽重整过程，Ni/γ-AlO 提高了焦油中烃类的相对浓度，同时降低了 O-物种的相对浓度 15.73%，与无催化剂条件相比。因此，将 Ni/γ-AlO 纳入热解过程是一种用于废物能源转化的可再生方法。
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