{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["13(16)"],"submitter":["Zhang D"],"pubmed_abstract":["Catalytic cracking of phenolic compounds to aromatic hydrocarbons is vital to the utilization of lignin. In this work, pristine amorphous SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> was used as a catalyst to produce aromatic hydrocarbons from lignin-derived phenolics by catalytic cracking using methanol as the solvent. These catalysts were characterized by various techniques (XRD, NH<sub>3</sub>-TPD, Py-IR, <i>etc.</i>) and evaluated on a fixed bed reactor using guaiacol as a model compound. The effects of reaction temperature, the flow of carrier gas, the molar ratio of guaiacol to methanol, and WHSV were investigated. 33-SA (SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> with the SiO<sub>2</sub> content of 33%) exhibited the best catalytic activity due to its high content of Lewis acid sites (168.47 μmol g<sup>-1</sup>). Co-feeding with methanol promoted the removal of oxygen atoms and improved the reaction system H/C<sub>eff</sub>. Under the optimal conditions of 400 °C, 25 mL min<sup>-1</sup> N<sub>2</sub>, a molar ratio of methanol to guaiacol of 25, and WHSV of 8/3 h<sup>-1</sup>, the yield of aromatic hydrocarbons reached 57.93%. The deactivating species in the transformation of guaiacol into aromatic hydrocarbons on catalysts were also studied."],"journal":["RSC advances"],"pagination":["10830-10839"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10074442"],"repository":["biostudies-literature"],"pubmed_title":["Production of aromatic hydrocarbons from lignin derivatives by catalytic cracking over a SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> catalyst."],"pmcid":["PMC10074442"],"pubmed_authors":["Yin H","Zhang D","Ma L","Li S","Zhang Y","Zhang X","Zheng Q","Fu P"],"additional_accession":[]},"is_claimable":false,"name":"Production of aromatic hydrocarbons from lignin derivatives by catalytic cracking over a SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> catalyst.","description":"Catalytic cracking of phenolic compounds to aromatic hydrocarbons is vital to the utilization of lignin. In this work, pristine amorphous SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> was used as a catalyst to produce aromatic hydrocarbons from lignin-derived phenolics by catalytic cracking using methanol as the solvent. These catalysts were characterized by various techniques (XRD, NH<sub>3</sub>-TPD, Py-IR, <i>etc.</i>) and evaluated on a fixed bed reactor using guaiacol as a model compound. The effects of reaction temperature, the flow of carrier gas, the molar ratio of guaiacol to methanol, and WHSV were investigated. 33-SA (SiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> with the SiO<sub>2</sub> content of 33%) exhibited the best catalytic activity due to its high content of Lewis acid sites (168.47 μmol g<sup>-1</sup>). Co-feeding with methanol promoted the removal of oxygen atoms and improved the reaction system H/C<sub>eff</sub>. Under the optimal conditions of 400 °C, 25 mL min<sup>-1</sup> N<sub>2</sub>, a molar ratio of methanol to guaiacol of 25, and WHSV of 8/3 h<sup>-1</sup>, the yield of aromatic hydrocarbons reached 57.93%. The deactivating species in the transformation of guaiacol into aromatic hydrocarbons on catalysts were also studied.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Apr","modification":"2025-04-19T17:30:28.259Z","creation":"2025-04-19T17:30:28.259Z"},"accession":"S-EPMC10074442","cross_references":{"pubmed":["37033419"],"doi":["10.1039/d3ra00990d"]}}