Sweet sorghum stalk liquefaction in supercritical methanol: Effects of operating conditions on product yields and molecular composition of soluble fraction was written by Yan, Hong-Lei;Zong, Zhi-Min;Li, Zhan-Ku;Kong, Jiao;Zheng, Quan-Xi;Li, Yan;Wei, Xian-Yong. And the article was included in Fuel Processing Technology in 2017.Computed Properties of C20H40O2 The following contents are mentioned in the article:
Liquefaction of sweet sorghum stalk (SSS) in supercritical methanol was carried out under different conditions, including temperature, holding time, and SSS-to-methanol ratio. Each reaction mixture was filtrated to afford residue and bio-oil (BO, i.e., methanol-soluble portion). The optimal conditions were determined to be 300 °C and 30 min based on the BO yield and the maximum yield of BO is 40.5 wt% with higher heating value of 25.1 kJ g– 1. Low SSS-to-methanol ratio, i.e., either more methanol volume or less SSS dose, benefits the BO yield. According to gas chromatograph/mass spectrometric anal., the compounds detected in the BOs can be grouped into hydrocarbons, alcs., phenolic compounds (PCs), methoxybenzenes, ketones, esters, and others. Among them, PCs and esters are the most abundant. Guaiacols and alkylphenols are predominant PCs, which were mainly originated from the decomposition of lignin in SSS. Esters can be further classified into long-chain Me esters (LCMEs), short-chain Me esters (SCMEs), di-Me diesters, and polymethyl benzenepolycarboxylates. The variation of esters mainly relied on LCME and SCME change with varied reaction conditions. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Computed Properties of C20H40O2).
Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Computed Properties of C20H40O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics