Search Results

You are looking at 1 - 10 of 2,756 items :

  • "molecular sieve" x
Clear All

Corona Discharge-Molecular Sieve Hybrid System for NO x Removal from Flue Gas M. Dors1 and J. Mizeraczyk Centre for Plasma and Laser Engineering, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdansk, Poland Abstract: The objective of this work was to investigate NO x removal with a hybrid system consisting of a DC corona discharge and a molecular sieve at a room temperature (22 °C). In the hybrid reactor a positive DC corona discharge was generated between a hollow needle and a flat mesh. A gas mixture of N2(80%): O2

, angewendet werden solite. Hans-Georg Kuball, Kaiserslautern H.-G. Karge, J. Weitkamp (Hrsg.): Molecular Sieves, Science and Technology, Springer, Berlin, Heidelberg, New York, London, Paris, Tokyo, Hong Kong 1998, ISBN 3-540- 63622-6, 302 Seiten, hardcover, DM 298,-. Die rasante Entwicklung des Wissensgebietes Molekularsiebe lieB den Wunsch reifen, das akkumulierte Wissen zusammengefaBt darzustellen. Diesem Anliegen dient die Serie „Molecular Sieves - Science and Technology". Unter der Regie der international aner- kannten Experten H.-G. Karge und J. Weitkamp werden im

[1] Anderson, M. W. (1997). Simplified description of MCM-48. Zeolites, 19, 220–227. DOI: 10.1016/S0144-2449(97)00061-4. http://dx.doi.org/10.1016/S0144-2449(97)00061-4 [2] Beck, J. S., Vartuli, J. C., Roth, W. J., Leonowicz, M. E., Kresge, C. T., Schmitt, K. D., Chu, C. T.-W., Olson, D. H., Sheppard, E. W., McCullen, S. B., Higgins, J. B., & Schlenker, J. L. (1992). A new family of mesoporous molecular sieves prepared with liquid crystal templates. Journal of the American Chemical Society, 114, 10834–10843. DOI: 10.1021/ja00053a020. http://dx.doi.org/10.1021/ja

DOI 10.1515/revce-2012-0009      Rev Chem Eng 2013; 29(2): 99–122 Fariba Marzpour Shalmani , Sima Askari and Rouein Halladj * Microwave synthesis of SAPO molecular sieves Abstract: During the past decade, a significant progress has been achieved in the microwave synthesis of silicoa- luminophosphate (SAPO) molecular sieves. This review attempts to summarize the recent developments and achievements in the microwave synthesis of SAPO molec- ular sieves, especially SAPO-34, SAPO-5, and SAPO-11. It also focuses mainly on the effects of the microwave

like adsorption on porous materials are considered. Adsorption is a cheap process that has low energy consumption, and its efficiency is dependent on the adsorbent used in the system ( Jia 2014 ; Plaza 2012 ). Carbon molecular sieve (CMS) is a carbonaceous material with a narrow pore size distribution comparable to the sorbate’s molecular size. The small size of the pores in CMS makes it highly selective for gas (vapors) separation ( Bae 2005 ; Reid 2001 ; Rao, Jenkins, and Steele 1985 ; Cansado, Carrott, and Carrott 2006 ; Huang, Sundaram, and Farooq 2003

References [1] Dillon A.C., Heben M.J., Hydrogen storage using carbon adsorbents: past, present and future, Appl. Phys. A: Mater. Sci & Process., 2001, 72, 133–142 [2] Hassan M.M., Ruthven D.M., Raghavan N.S., Air separation by pressure swing adsorption on a carbon molecular sieve, Chem. Eng. Sci., 1986, 41, 1333–1343 [3] Rege S.U., Yang R.T., Kinetic separation of oxygen and argon using molecular sieve carbon, Adsorption, 2000, 6, 15-22 [4] Srinivasan R., Auvil S.R., Schork J.K., Mass transfer in carbon molecular sieves – an interpretation of Langmuir

Influence of Ammonia on N O x Removal in Corona Discharge-Molecular Sieve Hybrid System M . Dors*' \ J. Mizeraczyk1, and G. V. Nichipor2 Centre for Plasma and Laser Engineering, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-231 Gdansk, Poland 2 Joint Institute of Power and Nuclear Research, National Academy of Sciences of Belarus, 220109, Minsk-Sosny, Belarus Abstract: The objective of this work was to investigate N O x removal with a hybrid system consisting of a DC corona discharge and a NH3-saturated molecular sieve at a

Y-type zeolite molecular sieves are traditionally used as catalysts and adsorption materials. They have small dynamic pore sizes and can only be used with reactants that are smaller than about 1.2 nm. Thus, they limit the size and shape of reactants that can permeate into the catalyst’s mesh framework, and influence the catalytic selectivity of the reaction. Although the pore size of the SBA-15 mesoporous molecule is uniformly sized and adjustable [ 1 ], its pore channels have long-range order and short-range disorder. In addition to that, mesoporous materials

Z. Phys. Chem. 219 (2005) 905–920  by Oldenbourg Wissenschaftsverlag, München Ti-Oxo Radicals and Product Selectivity in Olefin Oxidations over Titanosilicate Molecular Sieves By Vasudev N. Shetti, D. Srinivas, and P. Ratnasamy∗ National Chemical Laboratory, Pune 411 008, India Dedicated to Prof. Dr. Helmut Knözinger on the occasion of his 70th birthday (Received March 30, 2005; accepted April 11, 2005) Titanosilicates / Molecular Sieves / Titanium-Oxo Radicals / Reactive Oxygen Species / Oxidations / Product Selectivity / EPR-Spin Trap Experiments / Cyclic

new heterogeneous catalytic methods for the preparation of different organic compounds using supported metal catalysts. In this work, palladium [ 41 ], [ 42 ], [ 43 ], [ 44 ], nickel [ 45 ], copper [ 46 ], [ 47 ], [ 48 ], [ 49 ], titanium [ 50 ], or lanthanum [ 51 ] on different supports (4 Å molecular sieve, Mg:La 3:1 mixed oxide) were used with good yields in organic syntheses. Here, we present a simple method for the three-component synthesis of the polyfunctionalized 4 H -pyrans and 4 H -benzo[ b ]pyrans in the presence of a 4 Å molecular sieve (4A