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He M.,Sinopec | He M.,East China Normal University | Sun Y.,CAS Shanghai Advanced Research Institute | Sun Y.,Shanxi Institute of Coal CAS Chemistry | Han B.,CAS Beijing National Laboratory for Molecular
Angewandte Chemie - International Edition | Year: 2013

How green was my valley: Green carbon science focuses on the transformations of carbon-containing compounds in the entire carbon cycle. The ultimate aim is to use carbon resources efficiently and minimize the net CO 2 emission. This holistic view also has ramifications for related fields including petroleum refining and the production of liquid fuels and chemicals from coal, methane, CO2, and biomass. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Guo W.,University of Technology, Sydney | Ngo H.-H.,University of Technology, Sydney | Li J.,CAS Shanghai Advanced Research Institute | Li J.,Tianjin Polytechnic University
Bioresource Technology | Year: 2012

During the last decades, the interest of using membrane technology has emerged in wastewater treatment as well as drinking water and process water production. However, the impediment of the membrane technology is the fouling problem and consequently higher operating and membrane replacement cost. Hence, better understanding of membrane fouling is not only the key to solve the problems, but also is one of the main factors driving membrane technology forward. This mini-review paper identifies the major foulants and the principal membrane fouling mechanisms such as pore blocking, cake formation, concentration polarization, organic adsorption, inorganic precipitation and biological fouling. It also gives a holistic review about different fouling phenomena during the application of membrane separation technologies in water and wastewater treatment, with specific references to various problems, membranes, treatment processes and its practical applications. © 2012 Elsevier Ltd. Source

CAS Shanghai Advanced Research Institute and Zhongke Yigong Shanghai Chemical Technology Co. | Date: 2012-07-12

Provided is a method for preparing vinyl chloride with acetylene and dichlorethane for large-scale industrial production. Acetylene, dichlorethane vapor and hydrogen chloride gas at a molar ratio of 1:(0.3-1.0):(0-0.20) are mixed; the raw mixed gas is preheated; the preheated raw mixed gas passes through a reactor containing a catalyst and reacts; the resultant mixed gas is cooled to 30-50 C. and pressurized to 0.4-1.0 MPa, and then cooled to ambient temperature, and further frozen to 25-15 C. for liquefaction isolation, and unliquefied gas is recycled and reused; liquefied liquid is sent to a rectifying tower for rectification, and vinyl chloride monomers meeting polymerization requirements are obtained. The present invention has the advantages of eliminating mercury contamination completely, simplifying the reactor structure, recycling hydrogen chloride and acetylene, reducing waterwash process, avoiding mass production of waste acid and improving utilization of chlorine.

CAS Shanghai Advanced Research Institute | Date: 2014-05-07

Provided is a preparation method of a crystalline silicon film. The method includes: 1) forming a mask for making a periodic silicon rod array on a monocrystalline silicon wafer substrate, and forming the periodic silicon rod array on the monocrystalline silicon substrate by a wet chemical etching or dry etching process; 2) forming barrier layers on the surface of the monocrystalline silicon substrate and the surface of the silicon rod array for next selectively epitaxial growth of silicon; 3) exposing silicon cores on the heads of the rod array by a selective etching process to form a silicon seed array; 4) growing a continuous silicon film at the top of the rod array by a chemical vapor deposition method using the exposed silicon cores as seeds for selectively epitaxial growth of silicon; and 5) lifting off the silicon film and transferring the silicon film to a preset substrate, and the seeded substrate is reusable.

Accelergy and CAS Shanghai Advanced Research Institute | Date: 2014-05-23

An IBTL system having a low GHG footprint for converting biomass to liquid fuels in which a biomass feed is converted to liquids by direct liquefaction and the liquids are upgraded to produce premium fuels. Biomass residues from the direct liquefaction, and optionally additional biomass is pyrolyzed to produce structured biochar, hydrogen for the liquefaction and upgrading, and CO

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