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Synthesis and Characterization of Su...

Erturk, Kubra Mina.

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Synthesis and Characterization of Sulfated Heterogeneous Catalyst for Biodiesel Transesterification.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Synthesis and Characterization of Sulfated Heterogeneous Catalyst for Biodiesel Transesterification./
作者:	Erturk, Kubra Mina.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	85 p.
附註:	Source: Masters Abstracts International, Volume: 82-11.
Contained By:	Masters Abstracts International82-11.
標題:	Chemical engineering. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28409864
ISBN:	9798728237686

Synthesis and Characterization of Sulfated Heterogeneous Catalyst for Biodiesel Transesterification.
Erturk, Kubra Mina.

Synthesis and Characterization of Sulfated Heterogeneous Catalyst for Biodiesel Transesterification. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 85 p.

Source: Masters Abstracts International, Volume: 82-11.

Thesis (M.S.)--University of South Florida, 2021.

This item must not be sold to any third party vendors.

The main objective of this study was to develop and analyze the next generation solid acid catalyst for environmentally friendly production of biodiesel with waste cooking oil. Sulfate-based nano-structured TiO2 catalysts were prepared using sol-gel process from chlorosulfonic acid and sulfuric acid as sulfate precursors. A novel method was developed for in- situ chlorosulfonic acidbased TiO2 preparation with a one-step sol-gel route. As experimentally demonstrated, catalysts with high surface area, nano structured, highly porous structure were obtained.SEM, EDS, XRD, Nitrogen sorption and ATR-FTIR were used for the characterization of the catalysts while biodiesel samples were analyzed with GC-MS. The catalyst performance and structure are shown to be strong function of sol-gel method such as pH and the subsequent calcination temperatures. Catalysts synthesized at higher sol-gel pH and calcined at higher temperatures result in anatase crystalline structure are effective catalysts for Biodiesel production while rutile structures developed at lower pH and afterwards calcined at lower temperatures are not.With the chlorosulfonic acid-based catalysts, higher sulfate content, higher surface area, denser sulfate functionality, more aggregated structures were obtained in comparison to sulfuric acid catalysts. The pore areas with chlorosulfonic precursor resulted in catalysts with BET surface area of 124.9 m2/g while sulfuric acid was 30.123 m2/g. Furthermore, DFT adsorption-desorption method results, pore volume and pore width were determined, 0.213 cm2/g and 7.8 nm, respectively for chlorosulfonic precursers while sulfuric acid resulted in 0.054 cm2/g and 6.8 nm comparatively.Moreover, the chlorosulfonic acid-based catalyst resulted better qualitative results in biodiesel experiments conducted under the same conditions, 80 °C for 3 hours.

ISBN: 9798728237686Subjects--Topical Terms:

560457
Chemical engineering.
Subjects--Index Terms:

Biodiesel transesterification

Synthesis and Characterization of Sulfated Heterogeneous Catalyst for Biodiesel Transesterification.
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500 $a Source: Masters Abstracts International, Volume: 82-11.
500 $a Advisor: Sunol, Aydin K.
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520 $a The main objective of this study was to develop and analyze the next generation solid acid catalyst for environmentally friendly production of biodiesel with waste cooking oil. Sulfate-based nano-structured TiO2 catalysts were prepared using sol-gel process from chlorosulfonic acid and sulfuric acid as sulfate precursors. A novel method was developed for in- situ chlorosulfonic acidbased TiO2 preparation with a one-step sol-gel route. As experimentally demonstrated, catalysts with high surface area, nano structured, highly porous structure were obtained.SEM, EDS, XRD, Nitrogen sorption and ATR-FTIR were used for the characterization of the catalysts while biodiesel samples were analyzed with GC-MS. The catalyst performance and structure are shown to be strong function of sol-gel method such as pH and the subsequent calcination temperatures. Catalysts synthesized at higher sol-gel pH and calcined at higher temperatures result in anatase crystalline structure are effective catalysts for Biodiesel production while rutile structures developed at lower pH and afterwards calcined at lower temperatures are not.With the chlorosulfonic acid-based catalysts, higher sulfate content, higher surface area, denser sulfate functionality, more aggregated structures were obtained in comparison to sulfuric acid catalysts. The pore areas with chlorosulfonic precursor resulted in catalysts with BET surface area of 124.9 m2/g while sulfuric acid was 30.123 m2/g. Furthermore, DFT adsorption-desorption method results, pore volume and pore width were determined, 0.213 cm2/g and 7.8 nm, respectively for chlorosulfonic precursers while sulfuric acid resulted in 0.054 cm2/g and 6.8 nm comparatively.Moreover, the chlorosulfonic acid-based catalyst resulted better qualitative results in biodiesel experiments conducted under the same conditions, 80 °C for 3 hours.
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