Study on Catalytic Upgrading of Gaseous Tar by Synergistic Effect of La-Acid on Y Zeolite

Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown

Опубликована: Март 15, 2025

In recent years, metal-loaded zeolites have been widely adopted and applied to catalytic pyrolysis technology. this article, two series of LaNaY-x% LaHY-x% catalysts were prepared, their synergistic effects on La acid sites in the upgrading coal gaseous tar studied. It was found that LaNaY-4% catalyst could significantly reduce yield 4.09%, gas reached its highest value 18.70%. The mainly occupied position sodalite cage. Compared with LaNaY-x%, slightly increased but decreased water. metal can activate hydrogen-rich components form small molecular free radicals, which stabilize cracking fragments, promote formation light gas, block wastewater. terms components, LaHY-8% showed proportion (95.03%) (4.47%). Since is rich La, it occupies a large supercage there are different cascades acids, resulting good effect. But coke compared catalyst. be reduced an increase loading. activation effect avoid coke.

Язык: Английский

Ni-Co bimetal catalysts anchored on MWCNTS-COOH for enhancing CH4 electrooxidation to C2H5OH

Molecular Catalysis, Год журнала: 2024, Номер 569, С. 114589 - 114589

Опубликована: Окт. 2, 2024

Язык: Английский