Synthesis of Sulfated Silica-Doped Tin Oxides and Their High Activities in Transesterification

Du, Yunchen; Liu, Sen; Ji, Yanyan; Zhang, Yonglai; Shu, Wei; Liu, Fujian; Xiao, Feng‐Shou

doi:10.1007/s10562-008-9440-6

Cited by 20 publications

(5 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Du et al [167] prepared several sulfated silica-doped tin oxides with large surface areas by hydrothermal synthesis, followed by sulfation and calcination. Catalytic tests in the transesterification of triacetin as a model substrate with methanol showed that sulfated silica-doped tin oxides were much more active than conventional sulfated tin oxides.…”

Section: Sulfated Zirconia Catalysts Have Been Extensively Examined Imentioning

confidence: 99%

Catalytic Applications in the Production of Biodiesel from Vegetable Oils

Sivasamy¹,

Cheah²,

Fornasiero³

et al. 2009

ChemSusChem

298

177

View full text Add to dashboard Cite

The predicted shortage of fossil fuels and related environmental concerns have recently attracted significant attention to scientific and technological issues concerning the conversion of biomass into fuels. First-generation biodiesel, obtained from vegetable oils and animal fats by transesterification, relies on commercial technology and rich scientific background, though continuous progress in this field offers opportunities for improvement. This review focuses on new catalytic systems for the transesterification of oils to the corresponding ethyl/methyl esters of fatty acids. It also addresses some innovative/emerging technologies for the production of biodiesel, such as the catalytic hydrocracking of vegetable oils to hydrocarbons. The special role of the catalyst as a key to efficient technology is outlined, together with the other important factors that affect the yield and quality of the product, including feedstock-related properties and various system conditions.

show abstract

Section: Sulfated Zirconia Catalysts Have Been Extensively Examined Imentioning

confidence: 99%

Catalytic Applications in the Production of Biodiesel from Vegetable Oils

Sivasamy¹,

Cheah²,

Fornasiero³

et al. 2009

ChemSusChem

298

177

View full text Add to dashboard Cite

show abstract

“…These kinds of catalysts, including sulfated zirconia [87][88][89] and sulfated tin oxides [90] have been widely used in esterification and transesterification reactions under mild conditions. Kiss et al [87] studied several solid acid catalysts (zeolites, ion-exchange resins, and mixed metal oxides) as catalysts for the esterification of dodecanoic acid with 2-ethylhexanol, 1-propanol, and methanol.…”

Section: Sulfated Zirconia Based Catalystsmentioning

confidence: 99%

Advancements in Heterogeneous Catalysis for Biodiesel Synthesis

et al. 2010

View full text Add to dashboard Cite

Heterogeneous catalysts are promising for the transesterification reaction of vegetable oils to produce biodiesel and have been studied intensively over the last decade. Unlike the homogeneous catalysts, heterogeneous catalysts can be easily separated from reaction mixture and reused for many times. They are environmentally benign and could be easily operated in continuous processes. This review classifies the solid catalysts into two categories based on their catalytic temperature, i.e. high temperature catalysts and low temperature catalysts. The nature of the catalysts can be specified into solid bases and solid acids. Three aspects, catalyst activity, catalyst life and oil flexibility, will be reviewed. Two kinds of heterogeneous catalysts, reported by IFP Inc. and by WSU, respectively, show a high catalytic activity, long catalyst life and low leaching of catalyst components. These two catalysts also show ability to simultaneously catalyze esterification and transesterification, and can be used in half-refined or crude oil system which provide a potential for greatly decrease the feedstock cost.

show abstract

“…Utilizando o mesmo método, Garcia (2006) obteve 12,6 m 2 g -1 e utilizando o método de precipitação, a área obtida foi de 89,2 m 2 g -1 . Já Du et al (2008), sintetizando a zircônia sulfatada pelo método convencional, obtiveram um valor aproximado de 75 m 2 g -1 1.…”

Section: Resultados E Discussõesunclassified

Influência do tempo de sulfatação nas características estruturais e acidez do catalisador zircônia sulfatada

Raia¹,

Arroyo²,

Palácio³

et al. 2022

Lat. Americ. J. of Develop.

View full text Add to dashboard Cite

Amostras de óxido de zircônio foram preparadas utilizando o método de precipitação em NH3, com controle de pH de precipitação. A sulfatação ocorreu por impregnação dos mesmos óxidos, em soluções 0,5 M de H2SO4, variando-se o tempo, verificando a sua influência na formação da fase tetragonal e monoclínica do catalisador. Os resultados mostram que o tempo de sulfatação possui influência direta na força ácida dos catalisadores, devido a maior intensidade dos picos tetragonais, que se caracterizam por fornecer uma maior acidez para os catalisadores.

show abstract

Synthesis of Sulfated Silica-Doped Tin Oxides and Their High Activities in Transesterification

Cited by 20 publications

References 36 publications

Catalytic Applications in the Production of Biodiesel from Vegetable Oils

Catalytic Applications in the Production of Biodiesel from Vegetable Oils

Advancements in Heterogeneous Catalysis for Biodiesel Synthesis

Influência do tempo de sulfatação nas características estruturais e acidez do catalisador zircônia sulfatada

Contact Info

Product

Resources

About