Catalytic hydroconversion of methanol-soluble portion from Xiaolongtan lignite over difunctional Ni/Z5A was written by Li, Wei-Tu;Wei, Xian-Yong;Liu, Xiang-Xue;Guo, Lu-Lu;Qi, Shi-Chao;Li, Zhan-Ku;Zhang, Dong-Dong;Zong, Zhi-Min. And the article was included in Fuel Processing Technology in 2016.Application In Synthesis of Methyl nonadecanoate The following contents are mentioned in the article:
A highly active difunctional supported nickel catalyst Ni/Z5A was prepared by thermally decomposing nickel carbonyl onto zeolite 5A (Z5A). The catalytic hydroconversion (CHC) of methanol-soluble portion (MSP) from the methanolysis of Xiaolongtan lignite was investigated over Ni/Z5A at 200 °C. Detailed mol. compositions of MSP and catalytically hydrogenated MSP (CHMSP) were characterized with a Fourier transform IR spectrometer, gas chromatograph/mass spectrometer (GC/MS), and neg.-ion electrospray ionization Fourier transform ion cyclotron resonance mass spectrometer (ESIFTICRMS). According to anal. with GC/MS, MSP is rich in aromatic ring- and/or heteroatom-containing compounds, while most of the GC/MS-detectable compounds in CHMSP are chain alkanes and cyclanes. The anal. with ESIFTICRMS shows that both the number and yields of oxygen- and/or nitrogen-containing species in MSP were dramatically reduced after the CHC. These facts indicate that Ni/Z5A effectively catalyzed heteroatom (especially O atom) removal from MSP and hydrogenation of MSP. Naphth-1-ol and oxybis(methylene)dibenzene (OBMDB) were used as lignite-related model compounds and their CHCs were investigated to further understand the catalysis of Ni/Z5A in the CHC of MSP. As a result, Ni/Z5A proved to have 2 functions, i.e., activating H2 to biat. active hydrogen (BAAH) and heterolytically splitting H2 to H+ relatively free from Ni/Z5A and H– adsorbed on Ni/Z5A. Over Ni/Z5A, the CHCs of naphth-1-ol and OBMDB proceeded via BAAH and H+ transfer to mainly produce tetralin and decalin from naphth-1-ol and methylcyclohexane and toluene from OBMDB. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Application In Synthesis of Methyl nonadecanoate).
Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Application In Synthesis of Methyl nonadecanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics