Application of Clay-Based Catalysts in Co-Conversion and Co-Pyrolysis of Chlorella and Oil Shale

Catalysts, Journal Year: 2025, Volume and Issue: 15(4), P. 322 - 322

Published: March 27, 2025

In this study, natural clay-like silicate minerals were used as precursors to prepare highly acid-catalytic hydrophobic catalysts. A series of sulfonic acid-functionalized attapulgite catalysts, SO3H-APG, fabricated by the ball-milling–oxidation method. The catalytic performance in co-liquefaction and co-pyrolysis Chlorella oil shale was investigated. catalysts analyzed using hydrophobicity evaluation, TEM, BET, FTIR, other characterization methods. SO3H-APG exhibited good dispensability. Sulfonation grafting improved their excellent hydrocarbon conversion activity. According GC–MS results, addition shifted products microalgae towards lower carbon numbers, with majority concentrated between C5 C12, a content 84.9% range C5–C11, while C12–C20 only 15.1%. experiments, promoted thermal decomposition reaction. synergistic effect facilitated production more compounds higher H/C atomic ratio. development type catalyst provides an economically favorable approach for co-conversion algae shale. pyrolysis kinetic diagram shows that adding APG clay-based significantly reduces time achieving same rate, especially below 300 °C, where situ is most pronounced.

Language: Английский

Volatile-char interactions during biomass pyrolysis: Effect of decoupled primary and secondary interactions on product control

Fuel, Journal Year: 2025, Volume and Issue: 397, P. 135410 - 135410

Published: April 22, 2025

Language: Английский