2015
DOI: 10.1016/j.apcatb.2015.02.022
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Efficient production of propylene in the catalytic conversion of glycerol

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Cited by 50 publications
(66 citation statements)
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“…A Tabela VI traz os resultados da análise qualitativa dos produtos formados durante o teste de estabilidade. Observou-se a formação de hidrocarbonetos e compostos oxigenados, entre eles o propeno que é um produto de alto valor agregado e tem grande importância para a indústria petroquímica, por isso sua obtenção a partir de recursos renováveis tem atraído muita atenção nos últimos anos [25]. Quanto aos hidrocarbonetos pesados, obtiveram-se produtos de importantes usos na indústria, tais como, os butenos na obtenção de elastômeros e o metilpentano na fabricação de solventes.…”
Section: Ensaios De Atividade Catalíticaunclassified
“…A Tabela VI traz os resultados da análise qualitativa dos produtos formados durante o teste de estabilidade. Observou-se a formação de hidrocarbonetos e compostos oxigenados, entre eles o propeno que é um produto de alto valor agregado e tem grande importância para a indústria petroquímica, por isso sua obtenção a partir de recursos renováveis tem atraído muita atenção nos últimos anos [25]. Quanto aos hidrocarbonetos pesados, obtiveram-se produtos de importantes usos na indústria, tais como, os butenos na obtenção de elastômeros e o metilpentano na fabricação de solventes.…”
Section: Ensaios De Atividade Catalíticaunclassified
“…10,25,28 This conversion could be achieved by controlling the hydrogenation of glycerol to propanols. Sun et al.…”
Section: ■ Introductionmentioning
confidence: 99%
“…17,24,28 The introduction of hydrogen to the hydrogen-deficient glycerol molecule promotes the formation of oligomerized hydrocarbons and thus enhances the yield of aromatics or olefins over acid catalysts. Recently, Sun et al obtained approximately 85% selectivity for propylene in the conversion of glycerol over double-bed catalysts (9.3%WO 3 in Cu/Al 2 O 3 + SiO 2 −Al 2 O 3 ) using 20 wt % (4.7 mol %) glycerol aqueous solution with WHSV = 0.3 h −1 and a H 2 /glycerol ratio = 150 (approximately 0.67 kPa glycerol, 11.7 kPa H 2 O, and 87.6 kPa H 2 ) at 523 K. 28 Here, a similar two-stage process of glycerol conversion using Cu/ZSM-5 or Pt/ZSM-5 as hydrodeoxygenation catalysts and ZSM-5 as cracking catalysts was used to selectively convert glycerol to propylene (Figure 9, 1.0 kPa glycerol, 3.4 kPa H 2 O, 95.6 kPa H 2 ). The selectivity for propylene decreased with reaction temperature, similar to the results for the conversion of propanols to propylene shown in Figures 7 and 8.…”
Section: ■ Introductionmentioning
confidence: 99%
“…2,3 butanediol, produced via glucose fermentation, can be converted into C4H6, over scandium oxide catalysts, at high temperatures (i.e., 411 °C), reaching 88% yield. Using two catalytic beds, with scandium oxide and alumina, selectivity to C4H6 was 94%, proving the feasibility of direct double bond dehydration of 2,3 butanediol [91]. Alternatively, two step processes, using two different catalysts (e.g., silica or alumina based) for subsequent dehydrations, have also been proposed, yielding C4H6 via the formation of unsaturated alcohols [112].…”
Section: Butadiene (C4h6)mentioning
confidence: 99%
“…Over the optimized reaction conditions (i.e., 250 • C and 1 bar hydrogen pressure), selectivity to C 3 H 6 reached 85.0%, for complete glycerol conversion [89]. (Table 3) Sun et al used WO 3 -Cu/Al 2 O 3 catalysts, at 250 • C under hydrogen flow (atmospheric pressure) to obtain 47.4% selectivity to C 3 H 6 for 100% glycerol conversion [91]. Combining WO 3 -Cu/Al 2 O 3 and SiO 2 -Al 2 O 3 in a dual-bed reactor, selectivity to C 3 H 6 reached 84.8%.…”
Section: Propylene (C3h6)mentioning
confidence: 99%