The world production of chemicals and fuels is predominantly based on the conversion of nonrenewable raw materials, such as coal, natural gas, and oil. Nowadays, there are increasing ways to produce fuels from biomass, such as producing fuel alcohol from lignocellulose, obtaining liquid fuels through carbon bond coupling of fermentation products to produce fuels. Herein, we transformed the short-chain acetone-n-butanol-ethanol (ABE) into long-chain straight-chain, branched, and cyclic jet-fuel-range products via self-condensation of acetone, Guerbet reaction of ABE, Pd/C-KOH/K 3 PO 4 catalyzed alkylation, and the separation was carried out simultaneously. After the condensation reaction of ABE catalyzed by KOH/K 3 PO 4 with or without Pd/C at high temperature, the ABE can be transformed into long-chain substances ranging from C7 to C12 (lower than 5% yield), which can be used as the precursor of the high-value fuels. Furthermore, most of the water in the ABE solution can be removed, and the water content decreased from 60 % to about 5%–8%. Future work will be concentrated on more liquid–liquid equilibria data of the ABE-water system at different temperatures and the design of highly-efficient catalysts to improve the reaction rate and the selectivity to the desired straight-chain, branched, and cyclic C7-C12 products.
Chemical decomposition of an epoxy system made of tetraglycidyl 4,4′-diaminodiphenylmethane (TGDDM) and 4,4′-diaminodiphenylsulfone (DDS) in supercritical 1-propanol was investigated under different reaction temperature and time. The GC–MS results suggested that the epoxy system was decomposed to the products including aniline, N-propylbenzenamine, and 4,4′-diaminodiphenylsulfone. The change of the products' yield with time was measured by GC . In addition, the formed chars were characterized by SEM, elemental analysis , Raman and XRD . The results implied the presence of some graphite microcrystals and disordered structure in the solid residue. Upon the addition of KOH, the Guerbet reaction of 1-propanol was promoted to generate more hydrogen. A possible free-radical reaction mechanism was proposed for the depolymerization of TGDDM/DDS epoxy resin . Hydrogenation of radicals had a promotion effect on thermolysis of TGDDM/DDS epoxy resin.
危险品化学品经营许可证（带存储）