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Polyethylene glycol -carbon dioxide

Daneshvar M, Kim S, Gulari E (1990) High-pressure phase equilibria of polyethylene glycol-carbon dioxide systems. J Phys Chem 94(5) 2124—2128... [Pg.15]

Weidner E, Wiesmet V, Knez Z et al (1997) Phase equilibrium (solid-liquid-gas) in polyethylene glycol-carbon dioxide systems. J Supercrit Fluids 10(3) 139-147... [Pg.15]

UnPET [United Resource Recovery PolyEthylene Terephthalate] A process for recycling waste PET (polyethylene terephthalate). The PET is first hydrolyzed by hot aqueous alkali, and the product then undergoes five complex processes. The only products leaving the process are terephthalic acid, ethylene glycol, carbon dioxide, and water. Developed from 1996 by the United Resource Recovery Corporation, Spartanburg, SC, and operated on a large scale in Switzerland, Germany, and the United States. [Pg.380]

The solvent can be tailored to provide selective acid gas removal based on the Hquid—gas solubiHties. For example, the Selexol process, Hcensed by Union Carbide Corporation, uses the dimethyl ether of polyethylene glycol (DMPEG) to provide high hydrogen sulfide selectivity. The solubiHty of hydrogen sulfide in DMPEG is 8—10 times that of carbon dioxide. [Pg.212]

Important processes commercially used are the Selexol, the Sulfinol, and the Rectisol processes. In these processes, no chemical reaction occurs between the acid gas and the solvent. The solvent, or absorbent, is a liquid that selectively absorbs the acid gases and leaves out the hydrocarbons. In the Selexol process for example, the solvent is dimethyl ether of polyethylene glycol. Raw natural gas passes countercurrently to the descending solvent. When the solvent becomes saturated with the acid gases, the pressure is reduced, and hydrogen sulfide and carbon dioxide are desorbed. The solvent is then recycled to the absorption tower. Figure 1-1 shows the Selexol process. ... [Pg.3]

Polymers usually are prepared by two different types of polymerization reactions — addition and condensation. In addition polymerization all of the atoms of the monomer molecules become part of the polymer in condensation polymerization some of the atoms of the monomer are split off in the reaction as water, alcohol, ammonia, or carbon dioxide, and so on. Some polymers can be formed either by addition or condensation reactions. An example is polyethylene glycol, which, in principle, can form either by dehydration of 1,2-ethanediol (ethylene glycol), which is condensation, or by addition polymerization of oxacyclopropane (ethylene oxide) 1... [Pg.1423]

Z.-Z. Yang et al., Capture and Utilization of Carbon Dioxide with Polyethylene Glycol, SpringerBriefs in Green Chemistry for Sustainability,... [Pg.3]

Hou Z, Theyssen N, Brinkmann A et al (2005) Biphasic aerobic oxidation of alcohols catalyzed by polyethylene glycol)-stabilized palladium nanoparticles in supercritical carbon dioxide. Angew Chem Int Ed 44(9) 1346—1349... [Pg.7]

Keywords Carbon dioxide Polyethylene glycol Phase behavior Biphasic solvent system Supercritical fluids Phase equilibrium... [Pg.8]

John MS (2011) Monte Carlo simulation of solute extraction via supercritical carbon dioxide from polyethylene glycol). Fluid Phase Equilib 305(1) 76—82... [Pg.15]

Wiesmet V, Weidner E, Behme S et al (2000) Measurement and modelling of high-pressure phase equilibria in the systems polyethylene glycol (PEG)-propane, PEG-nitrogen and PEG-carbon dioxide. J Supercrit Fluids 17(1) 1-12... [Pg.15]

Keywords Carbon dioxide Polyethylene glycol Biphasic solvent system Phase-transfer catalyst Surfactant Radical initiator... [Pg.17]

Heldebrant DJ, Jessop PG (2003) Liquid polyethylene glycol) and supercritical carbon dioxide A benign biphasic solvent system for use and recycling of homogeneous catalysts. J Am Chem Soc 125(19) 5600-5601... [Pg.36]

Kwon K-T, Uddin MS, Jung G-W et al (2011) Preparation of micro particles of functional pigments by gas-saturated solution process using supercritical carbon dioxide and polyethylene glycol. Korean J Chem Eng 28(10) 2044-2049... [Pg.38]

Miao C-X, He L-N, Wang J-Q et al (2009) Biomimetic oxidation of alcohols catalyzed by TEMPO-functionalized polyethylene glycol and copper chloride in compressed carbon dioxide. Synlett 20 3291-3294... [Pg.39]

Du Y, Wu Y, Liu A-H et al (2008) Quaternary ammonium bromide functionalized polyethylene glycol a highly efficient and recyclable catalyst for selective synthesis of 5-aryl-2-oxazolidinones from carbon dioxide and aziridines under solvent-free conditions. J Org Chem 73(12) 4709-4712... [Pg.39]

Wang X, Yang H, Feng B et al (2009) Functionalized polyethylene glycol)-stabilized palladium nanoparticles as an efficient catalyst for aerobic oxidation of alcohols in supercritical carbon dioxide/poly(ethylene glycol) biphasic solvent system. Catal Lett 132 34-40... [Pg.39]

Wang J-Q, He L-N, Miao C-X et al (2009) The free-radical chemistry of polyethylene glycol organic reactions in compressed carbon dioxide. ChemSusChem 2(8) 755-760... [Pg.40]

Keywords Carbon dioxide Polyethylene glycol C02 capture and storage/ sequestration Solid absorbents Gas-separation membranes Liquid absorbents... [Pg.41]

Keywords Carbon dioxide Polyethylene glycol C02 transformation Cyclic carbonates Dimethylcarbonate Oxazolidinones Organic carbamates Urea derivatives... [Pg.55]

Yang Z-Z, Zhao Y-N, He L-N et al (2012) Highly efficient conversion of carbon dioxide catalyzed by polyethylene glycol-functionalized basic ionic liquids. Green Chem 14(2)519-527... [Pg.68]

Capture and Utilization of Carbon Dioxide with Polyethylene Glycol... [Pg.79]

See other pages where Polyethylene glycol -carbon dioxide is mentioned: [Pg.172]    [Pg.213]    [Pg.86]    [Pg.603]    [Pg.295]    [Pg.51]    [Pg.240]    [Pg.132]    [Pg.91]    [Pg.233]    [Pg.47]    [Pg.213]    [Pg.172]    [Pg.42]   


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