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Levulinic acid (LA) was effectively synthesized from xylose conversion under hot-compressed water using alkaline-treated zeolite catalysts. Zeolite Y was treated in alkaline solution to modify its acid-sites and physical properties. After NaOH treatment, the surface area markedly decreased due to collapses of crystal structure, while the pore size and pore volume increased. Interestingly, new strong...
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