Despite significant efforts towards the direct conversion of syngas into liquid fuels, the selectivity remains a challenge, particularly with regard to high-quality gasoline with a high octane number and a low content of aromatic compounds. Herein, we show that zeolites with 1D ten-membered-ring (10-MR) channel structures such as SAPO-11 and ZSM-22 in combination with zinc- and manganese-based metal oxides (Zn Mn O ) enable the selective synthesis of gasoline-range hydrocarbons C -C directly from syngas. The gasoline selectivity reached 76.7 % among hydrocarbons, with only 2.3 % CH at 20.3 % CO conversion. The ratio of isoparaffins to n-paraffins was as high as 15, and the research octane number was estimated to be 92. Furthermore, the content of aromatic compounds in the gasoline was as low as 16 %. The composition and structure of Zn Mn O play an important role in determining the overall activity. This process constitutes a potential technology for the one-step synthesis of environmentally friendly gasoline with a high octane number from a variety of carbon resources via syngas.
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http://dx.doi.org/10.1002/anie.201902990 | DOI Listing |
J Colloid Interface Sci
March 2025
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China. Electronic address:
Thiophene-like sulfides present in fuel oil release sulfur oxides (SO) during combustion, which pose significant risks for both environmental sustainability and public health. Adsorption desulfurization (ADS) has garnered considerable attention because of its mild operating conditions, low production costs, and minimal impact on the octane number of fuels. Metal-organic frameworks used as desulfurizing adsorbents provide several advantages, including a high specific surface area and easily adjustable structures.
View Article and Find Full Text PDFJ Mol Model
March 2025
Department of Chemistry, Kannur University, Swami Anandatheertha Campus, Edat, Payyanur, Kerala, 670327, India.
Context: In this study, a series of carefully designed oxygen-rich bicyclic ozonides, derived from 2,3-dihydrofuran (2,6,7,8-tetraoxabicyclo[3.2.1]octane), have been studied with meticulous attention to the incorporation of nitro and/or trinitromethyl (TNM) substituents.
View Article and Find Full Text PDFSmall
March 2025
Engineering Research Center of Functional Materials Intelligent Manufacturing of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.
The efficient separation of dibranched hexane from its linear and monobranched isomers is crucial but challenging for the production of high-RON (Research Octane Number) gasoline. Here, a strategy is presented to realize the efficient separation of high-purity (99.8%) dibranched 2,2-dimethylbutane from a ternary mixture of n-hexane/3-methylpentane/2,2-dimethylbutane by combining the sieving aperture and shape-matching cavity within the ultramicroporous metal-organic framework, ZnO(NTB) (HNTB = 4,4',4″-Nitrilotrisbenzoic acid).
View Article and Find Full Text PDFMolecules
February 2025
School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
Branched-chain amino acid aminotransferases (BCATs), existing as the two isoforms BCAT1 and BCAT2, are responsible for the catabolism of branched-chain amino acids (BCAAs) and are highly upregulated and implicated in a diverse range of cancers. BCAT1 inhibitors represent a potential class of therapeutic agents for cancers; however, none have yet progressed to clinical development. Our earlier research identified as a novel BCAT1 inhibitor featuring a unique bridged bicyclic skeleton and demonstrating both in vitro and in vivo antitumor activity against tyrosine kinase inhibitor (TKI)-resistant lung cancer with high BCAT1 expression.
View Article and Find Full Text PDFFood Chem
February 2025
National R&D Branch Center for Conventional Freshwater Fish Processing, College of Life Sciences, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; School of Health, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China; Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China. Electronic address:
Lipidomics and volatile organic compounds (VOCs) of fish oil from silver carp visceral hydrolyzed by papain, alkaline protease, pepsin, neutral protease, flavor protease, trypsin, and complex protease were investigated to explore the lipid-flavor transformation mechanism. Our results showed that diglycerol (DG, 18:4/16:1, 18:3/18:3, 16:0/18:3)/fatty acids (20:4) in glycerides and phosphatidylethanolamine (PE, 4:0/18:2)/phosphatidylglycerol (8:0e/10:3) in phospholipids could be used as markers to distinguish fish oil by different enzymolysis. A total of 130 and 36 VOCs were detected in fish oil using GC-MS and GC-IMS, respectively, including 11 key VOCs, namely 1-octen-3-ol, 1-heptanol, eugenol, (E)-2-decenal, (E, E)-2,4-heptadienal, (E, E)-2,4-decadienal, (E)-2-nonenal, benzene acetaldehyde, and 2,3-pentanedione.
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