dehydrogenation of alkane

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We further found the carbenium ion stability to be a quantitative reactant-type descriptor, correlating with the C–H activation barriers of the different alkanes. UOP Oleflex User Conference, USA, 2001. In general, Rh−Al2O3 catalyst was found to be excellent in activity and selectivity. The lowest yield of isobutene was in the case of 1-butanol. Nawaz Z, Wei F. Hydrothermal study of Pt-Sn-based SAPO-34 supported novel catalyst used for selective propane dehydrogenation to propylene. Zhao H, Song H, Xu L, Chou L. Isobutane dehydrogenation over the mesoporous Cr2O3/Al2O3 catalysts synthesized from a metal-organic framework MIL-101. Prom-st. 31, 10 (1933). Jibril BY, Al-Zahrani SM, Abasaeed AE, Hughes R. Oxidative dehydrogenation of propane over supported chromium-molybdenum oxides catalysts. A manganese phosphate catalyst was prepared, characterized (BET, FTIR and XPS), and tested for the reaction at atmospheric pressure and a temperature range of 450−550 °C. Shen Z, Liu J, Xu H, Yue Y, Hua W, Shen W. Dehydrogenation of ethane to ethylene over a highly efficient Ga. Trifiro F, Cavani F. Catalytica Studies Division. Chaku P, Spence D. CATOFIN technology improvements. The dehydrogenation activity measurements were carried out in a laboratory-scale plug-flow reactor at 520−580 °C under atmospheric pressure. Nawaz Z, Tang XP, Chu Y, Wei F. Influence of calcinations temperature and reaction atmosphere on catalytic properties of Pt-Sn/SAPO-34 novel catalyst for propane dehydrogenation to propylene. US Patent Appl 20040029715, 2004. Nawaz Z. Embedded alkane dehydrogenation system and process. In: Ullmann’s encyclopedia of industrial chemistry. Analysis of the Reaction Mixtures (Water is not Involved) from Runs in Table la, All figure content in this area was uploaded by Milan Králik, All content in this area was uploaded by Milan Králik on Mar 28, 2015. Sci Int (Lahore) 2009g; 21: 161–163. Available at: UOP. Monzon A, Garetto TF, Borgna A. Sintering and redispersion of Pt/γ-Al. Oxydehydrogenation of light paraffins to olefins, 2012. during propane dehydrogenation by optical fiber UV-visible diffuse reflectance spectroscopy. 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Nawaz Z, Wei F. Pt-Sn-based catalyst’s intensification using Al. Study=4192 OD, 1993. Weinheim, Germany: Wiley-VHC Verlag GmbH, 2008: 3206–3229. Its intrinsic activity seems to be largely dependent on the structure of the nearest surrounding and, therefore, can be modified by changing the nature and number of the neighbouring ions. ACS Catal 2014; 4: 1091–1098. Studies of physicochemical and surface-properties of alumina modified with rare-earth-oxides, 1. for relevant news, product releases and more. UV-vis diffuse reflectance spectroscopy-on line activity measurements of supported chromium oxide catalysts: relating isobutane dehydrogenation activity with Cr-speciation via experimental design. In all cases the Ref. Methods used for the dehydrogenation of alkanes. J Catal 2004; 223: 419–431. Catal Lett 1993; 21: 35–41. Oxydehydrogenation of light paraffins to olefins, 2012. J Catal 1996; 163: 186–194. catalysts for isobutane dehydrogenation. Weinheim: Wiley-VCH, 2009. to access the full features of the site or access our. However, because prior studies in flow reactors showed difficulty in self-coupling ethanol and 1-butanol over npAu in flow reactors, the inherent capability on npAu for self-coupling of ethanol and 1-butanol was examined under ultrahigh vacuum conditions on identical npAu catalysts. Faro AC, Souza KR, Camorim VLD, Cardoso MB. E-mail: Sattler JJHB, Martinez JR, Jimenez ES, Weckhuysen BM. UOP Oleflex process for light olefin production, 2013. Rather than belaboring underlying proofs and mathematical derivations, it emphasizes optimization methodology, focusing on techniques and stratagems relevant to engineering applications in design, operations, and analysis. catalyst for isobutane dehydrogenation. Make C3–C4 olefins selectively. A satisfactory description of the reaction rate depended on inclusion of the isobutene and hydrogen adsorption parameters in the mathematical model. This and some other aspects of the reaction mechanism need further studies at a molecular level. Kilicarslan S, Dogan M, Dogu T. Cr incorporated MCM-41 type catalysts for isobutane dehydrogenation and deactivation mechanism. US Patent Appl 62/049844, 2014. Reactor performance and stability in an alternating reaction-reheat paraffin dehydrogenation system. Importantly, we developed an alkane dehydrogenation model that captures the effect of catalyst acid–base surface properties (through dissociated H2 binding energy) and reactant substitution (through carbenium ion stability). UV-vis diffuse reflectance spectroscopy-on line activity measurements: the significance of Crn. Xu B, Li T, Zheng B, Hua W, Yue Y, Gao Z. Catalyst and process improvements for increased stability CATOFIN i-C. dehydrogenation, catalysts in petroleum refining and petrochemicals. Wei F, Tang XP, Zhou H, Nawaz Z. Hydrol Proc 1990; 19: 65–70. Catal Today 1999; 52: 259–269. Erdoel Erdgas Kohle 1995; 111: 271–274. PTQ, 2008. Neylon MK, Choi S, Kwon H, Curry KE, Thompson LT. To learn more about the use of cookies, please read our. Schindler GP, Magin W, Harth K. Regeneration of a dehydrogenation catalyst. 4217-25, 2004. J Catal 1997; 168: 421–430. Accessed on 2013. A new Houdry catalyst for the ‘third wave’–propane dehydrogenation. Available at: http://www.sud-chemieinc.com/houdry_isobutane.shtml. Nawaz Z, Tang XP, Wei F. Hexene catalytic cracking over SAPO-34 catalyst for propylene maximization: influence of reaction conditions and reaction pathway exploration. RP7, 2013. Ph.D. thesis. J Catal 2006; 239: 470–477. Nawaz Z, Chu Y, Wei Y, Tang XP, Wang Y, Wei F. Study of propane dehydrogenation to propylene in an integrated fluidized bed reactor using Pt-Sn/Al-SAPO-34 novel catalyst, Ind Eng Chem Res 2010a; 49: 4614–4619. Dehydrogenation and oxy-dehydrogenation of paraffins to olefins. dehydrogenation reaction was tested. Chen ZX, Derking A, Koot W, VanDijk MP. Wang J, Zhang F, Hua W, Yue Y, Gao Z. Dehydrogenation of propane over MWW-type zeolites supported gallium oxide. Chemtech 1993; 23: 35–39. Reviews in Chemical Engineering publishes authoritative review articles by leading chemical engineers, applied scientists and mathematicians on all aspects of the broad field of chemical engineering and applied chemistry. Fang D, Zhao J, Liu S, Zhang L, Ren W, Zhang H. Relationship between Cr-Al interaction and the performance of Cr-Al. Frey FE, Huppke HF. Catal Lett 1999; 60: 183–189. Sanfilippo D, Buonomo F, Fusco G, Miracca I. Paraffins activation through fluidized bed dehydrogenation: the answer to light olefins demand increase. catalysts synthesized from a metal-organic framework MIL-101. Michorczyk P, Ogonowski J, Zenczak K. Activity of chromium oxide deposited on different silica supports in the dehydrogenation of propane with CO2 – a comparative study. Fridman VZ, Romaine-Schmid E. Reduction of the Al-Cr catalyst selectivity as a result of its deactivation. Chu Y, Wu TW, Li YX, Nawaz Z, Wang Y, Wei F. Studies on propane dehydrogenation to propylene in a gas-solid-sold fluidized bed reactor. Handbook of MTBE and other gasoline oxygenates. Accessed on 2013. Available at: http://www.dailyfinance.com/rtn/pr/honeywell-s-uop-technology-selected-for-petrochemical-production-inchina/rfid637412763. Sanfilippo D, Miracca I. Oxidation and functionalization: classical and alternative routes and sources. Corresponding authors, a Sanfilippo D. Dehydrogenation in a fluidized bed – an east-west collaboration. Rossignol S, Kappenstein C. Effect of doping elements on the thermal stability of transition alumina. Oxydehydrogenation of light paraffins to olefins, 2013. Phys Chem Chem Phys 2003b; 5: 3811–3817. Pak Patent 141413, 2013b. Nesterenko NS, Ponomoreva OA, Yuschenko VV, Ivanova II, Testa F, DiRenzo F, Fajula F. Dehydrogenation of ethylbenzene and isobutane over Ga- and Fe-containing mesoporous silicas. Available at: http://www.uop.com. Dehydrogenation of isobutane over zinc titanate thin film catalysts. Numerous authors, said Gates, have suggested that alkane dehydrogenation is a slow reaction catalyzed by molybdenum and that the subsequent oligomerization and cyclization are catalyzed by the acidic zeolite sites. Russell AS, Stokes JJ. Get instant unlimited access to the article. Fang D, Zhao J, Liu S, Zhang L, Ren W, Zhang H. Relationship between Cr-Al interaction and the performance of Cr-Al2O3 catalysts for isobutane dehydrogenation. Al-Ghamdi AA, Al-Bassam AM, Draus JL. Catal Commun 2003; 4: 579–584. Nawaz Z, Wei F, Shu Q. No carbon buildup. Accessed on 2012. Al-Mutaz IS. ACS Catal 2014; 4: 1091–1098. Chemicals from petroleum. Tullo AH. The reaction CO2+CH4=2CO+2H2+60 kcal/mol was carried out over some transition metal catalysts (Ni, Fe and Co) and Ni/Al2O3 catalyst was then found to be the best for the reaction. Waddams AL. Accessed on 2013. Nawaz Z, Naveed S, Ramzan N, Wei F. Integrated approach for heat transfer in fluidized bed reactors. Proc 21st N Am Catal Soc Meet, San Francisco, CA, 2009. Pedersen EO. Appl Catal A 2011; 407: 20–28. 8, US Patent 4371730, 1983. Available at: Oviol L, Bruns M, Fridman V, Merriam J, Urbancic M. Mind the gap. WO 2014191945 A1, 2014. Eastman AD. UOP. Catalyst performance of novel Pt/Mg(Ga)(Al)O catalysts for alkane dehydrogenation. ratio, amount and distribution of Pt nanoparticles on the catalytic behavior. ACS Catal 2014; 4: 3357–3380. J Catal 1991; 127: 744. Heinritz-Adrian M, Wenzel S, Youssef F. Advanced propane dehydrogenation. The possible solution for improvement is by focusing on catalyst improvements and the unique design of reactors. of the whole article in a thesis or dissertation. Chin Patent Appl 200910091226.6, 2009. J R Inst Thai 2002, 27: 664–672. Nawaz Z, Wei F. Integrated bi-modal fluidized bed reactor for butane dehydrogenation to corresponding butylenes. We revealed that doping (100) γ-Al2O3 with Ga atoms has significant improvement in the dehydrogenation activity by decreasing the C–H activation barriers of the kinetically favored concerted mechanism and increasing the overall dehydrogenation turnover frequencies. Catal Lett 2007; 119: 283–288. Nawaz Z, Tang XP, Wang Y, Wei F. Parametric characterization and influence of tin on the performance of Pt-Sn/SAPO-34 catalyst for selective propane dehydrogenation to propylene. Appl Catal A 2003; 254: 261–272. This study shows that the oxygen-covered Ag-modified npAu does efficiently effect the self-coupling of ethanol and 1-butanol under UHV conditions. Paper AM-94-28, Annual Meeting of the National Petroleum Refiners, 1994. Join ResearchGate to find the people and research you need to help your work.

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