distillation gas
1.Using Flash Distillation-Capillary Gas Chromatography-Mass Spectrometry to Analyze the Volatile Compnents in Chinese Herbal Medicines(Ⅲ)
3.Based on the analysis on risk factors in the production system of polypropylene workshop in a chemical plant,the fire explosion risk in such main dangerous units as polymerization and flash distillation,raw material refining,tail gas reclaim and northern zone of canned propylene is assessed by the application of the method of Dow Fire Index V.7.0.And according to the result of the assessment,safety countermeasures for accident prevention are put forward.
5.However, the majority of crude oils, and this applies to the heavier, more viscous petroleums, which are processed by distillation, are usually separated into the lighter fractions (gas, gasoline, naphtha, kerosene, and gas oil) and the bottom or, as it is more generally called, the reduced crude.
6.The beer sample are treated by static headspace(SHS), solid-phase microextraction(SPME), distillation and ethyl acetate extraction(DEE), then separated and detected by gas chromatography-mass spectrometry(GC/MS). Seventy-four kinds of flavor volatiles have been obtained.
7.Besides, the research progress in traditional fermentation, fermentation by crude materials, the distillation of rice bran oil, the extraction of rice protein, and DDGS/DDG and march gas production etc. were also introduced.
8.Determination of boiling ranges of heavy oils by wide bore capillary gas chromatography and high temperature simulated distillation.
9.Analysis by Gas-Liquid Chromatography of DEG as Solvent in Extractive Distillation of Mixed Alcohols of Low Carbon Contents
10.alba×P. berolinensis and P.simonii by means of steam distillation technique. The chemical constituents of the oils were separated and identified by gas chromatography-mass spectrometry(GC-MS),and 19,22,29,20,10,36,20,14,16 and 10 components were separated,respectively,of which 15,21,27,18,9,33,17,11,13 and 9 components were identified.
