The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform

Bela Kumar - One of the best experts on this subject based on the ideXlab platform.

Yuefei Zhou - One of the best experts on this subject based on the ideXlab platform.

  • synthetic effect between iron oxide and sulfate mineral on the anaerobic transformation of Organic Substance
    Bioresource Technology, 2014
    Co-Authors: Tianhu Chen, Jin Wang, Yuefei Zhou
    Abstract:

    Synthetic effect between sulfate minerals (gypsum) and iron oxide (hematite) on the anaerobic transformation of Organic Substance was investigated in the current study. The results showed that gypsum was completely decomposed while hematite was partially reduced. The mineral phase analysis results showed that FeS and CaCO3 was the major mineralization product. Methane generation process was inhibited and inOrganic carbon contents in the precipitates were enhanced compared to the control without hematite and gypsum. The inOrganic carbon content increased with the increasing of hematite dosages. Co-addition of sulfate minerals and iron oxide would have a potential application prospect in the carbon sequestration area and reduction of the greenhouse gas release. The results would also reveal the role of inOrganic mineral in the global carbon cycle.

Christian W. Klampfl - One of the best experts on this subject based on the ideXlab platform.

  • Solvent effects in microemulsion electrokinetic chromatography.
    Electrophoresis, 2003
    Co-Authors: Christian W. Klampfl
    Abstract:

    The contribution of Organic solvents to the mechanisms responsible for separation in microemulsion electrokinetic chromatography (MEEKC) is reviewed. Organic solvents are needed as constituents of microemulsions for a series of reasons. (i) A water-immiscible Organic Substance is used to form the actual oil phase of the microemulsion, (ii) a less hydrophobic solvent is commonly employed as a so-called cosurfactant, and (iii) in many cases an Organic modifier is added to influence the solubility of the analytes in the aqueous phase of the microemulsion. All these Organic solvents do not only participate in the separation in their actual function, but also interact with each other and the analytes. Variations in separation selectivities triggered by changes in the nature and/or concentration of these Organic solvents present in microemulsions suitable for MEEKC are discussed in this work.

K. Schaber - One of the best experts on this subject based on the ideXlab platform.

  • A gas phase method for the generation of aqueous submicron suspensions of poorly water soluble Organic Substances
    Chemical Engineering Research and Design, 2015
    Co-Authors: A. Waldraff, K. Schaber
    Abstract:

    Abstract This work presents a novel process for the production of vapor-borne submicron Organic particles and their transfer into an aqueous environment. A mixture of water and the Organic Substance is totally evaporated in a micro-structured evaporator. In a second step, the hot vapor mixture is rapidly cooled down inside a quench cooler so that the Organic component gets into a supersaturated state and fine particles are formed due to homogenous nucleation. The rapid cooling is realized by the injection of liquid water into the hot vapor atmosphere. The liquid water evaporates and thereby cools down the vapor mixture. Water as one component of the vapor mixture remains in the vapor phase and acts as a carrier for the generated Organic particles. The generation of the aqueous suspension is realized by the total condensation of the water vapor atmosphere directly after the quench cooler. The condenser is continuously supplied with surfactant solution. This prevents agglomeration as soon as the particles get transferred from the vapor into the liquid environment. The process has been realized successfully in a lab-scale plant. First results with Tocopheryl acetate and Myristyl myristate as model Substances are presented in this work.

L V Gorbunova - One of the best experts on this subject based on the ideXlab platform.

  • influence of ozone treatment on change of structural chemical parameters of coal vitrinites and their reactivity during the thermal liquefaction process
    Fuel, 2006
    Co-Authors: Yu F Patrakov, O N Fedyaeva, S A Semenova, N I Fedorova, L V Gorbunova
    Abstract:

    The treatment of the coal Organic matter by ozone is shown by means of the chemical analysis and IR-spectroscopy to result in the redistribution of oxygen atoms in the functional groups. Based on the X-ray diffraction data, it has been shown that the change of the macromolecular organization of the coal Organic matter under ozonization is due to the transformation of an amorphous phase, i.e. the formation of crystal associates in it, resulting from packing the plane aromatic fragments after their substituents have been separated. The kinetic analysis of the thermal liquefaction process of ozonized coal in tetralin under non-isothermal conditions indicates that successive liquefaction of the coal Organic Substance activated by ozone and a certain part of the non-activated coal does occur. The amounts of the coal Organic matter activated by ozone and effective activation energy values of the thermal liquefaction process have been estimated.