Comparative Study on Catalytic Dehydration of Glycerol with Alcohols
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000400851 |
Resumo: | A comparative study of glycerol dehydration with alcohols (methanol, ethanol, tert-butyl alcohol) over ion exchange resin Amberlyst-35 was performed. The effect of catalyst amounts (1-15 wt.% to glycerol), reaction temperature (50-100 ºC), reaction time (5-10 h), and the molar ratio of alcohols to glycerol (3:1-8:1) were carried out in 50 mL stainless steel autoclave. During the process of glycerol dehydration with alcohols, when the catalyst amount (wt.% to glycerol) is over 10%, it was observed that neither glycerol conversion nor product selectivities are changed significantly. The optimum molar ratios of glycerol to methanol, ethanol and tert-butyl alcohol were 1:6, 1:4, and 1:6, respectively. The appropriate reaction temperature and reaction time were 80 ºC and 8 h at which the selectivities of di-alkyl glycerol ethers and tri-alkyl glycerol ether arrive to the highest. However, the main product was mono-alkyl glycerol ether (MAGE) in glycerol dehydration with tert-butyl alcohol due to steric hindrance influence. If MAGE is considered as the target product, the glycerol dehydration with tert-butyl alcohol could be a good choice. Additionally, the glycerol dehydration with ethanol could be a better route converting biomass material into vehicle fuel in view of its desired yields of higher ethers. |
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Comparative Study on Catalytic Dehydration of Glycerol with Alcoholsalcoholsglycerolcatalyticdehydrationliquid phaseA comparative study of glycerol dehydration with alcohols (methanol, ethanol, tert-butyl alcohol) over ion exchange resin Amberlyst-35 was performed. The effect of catalyst amounts (1-15 wt.% to glycerol), reaction temperature (50-100 ºC), reaction time (5-10 h), and the molar ratio of alcohols to glycerol (3:1-8:1) were carried out in 50 mL stainless steel autoclave. During the process of glycerol dehydration with alcohols, when the catalyst amount (wt.% to glycerol) is over 10%, it was observed that neither glycerol conversion nor product selectivities are changed significantly. The optimum molar ratios of glycerol to methanol, ethanol and tert-butyl alcohol were 1:6, 1:4, and 1:6, respectively. The appropriate reaction temperature and reaction time were 80 ºC and 8 h at which the selectivities of di-alkyl glycerol ethers and tri-alkyl glycerol ether arrive to the highest. However, the main product was mono-alkyl glycerol ether (MAGE) in glycerol dehydration with tert-butyl alcohol due to steric hindrance influence. If MAGE is considered as the target product, the glycerol dehydration with tert-butyl alcohol could be a good choice. Additionally, the glycerol dehydration with ethanol could be a better route converting biomass material into vehicle fuel in view of its desired yields of higher ethers.Sociedade Brasileira de Química2019-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000400851Journal of the Brazilian Chemical Society v.30 n.4 2019reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20180219info:eu-repo/semantics/openAccessJia,GuangxinMa,WenlinHe,BeibeiSun,YifanLiu,Laishuaneng2019-03-12T00:00:00Zoai:scielo:S0103-50532019000400851Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2019-03-12T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
title |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
spellingShingle |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols Jia,Guangxin alcohols glycerol catalytic dehydration liquid phase |
title_short |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
title_full |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
title_fullStr |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
title_full_unstemmed |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
title_sort |
Comparative Study on Catalytic Dehydration of Glycerol with Alcohols |
author |
Jia,Guangxin |
author_facet |
Jia,Guangxin Ma,Wenlin He,Beibei Sun,Yifan Liu,Laishuan |
author_role |
author |
author2 |
Ma,Wenlin He,Beibei Sun,Yifan Liu,Laishuan |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Jia,Guangxin Ma,Wenlin He,Beibei Sun,Yifan Liu,Laishuan |
dc.subject.por.fl_str_mv |
alcohols glycerol catalytic dehydration liquid phase |
topic |
alcohols glycerol catalytic dehydration liquid phase |
description |
A comparative study of glycerol dehydration with alcohols (methanol, ethanol, tert-butyl alcohol) over ion exchange resin Amberlyst-35 was performed. The effect of catalyst amounts (1-15 wt.% to glycerol), reaction temperature (50-100 ºC), reaction time (5-10 h), and the molar ratio of alcohols to glycerol (3:1-8:1) were carried out in 50 mL stainless steel autoclave. During the process of glycerol dehydration with alcohols, when the catalyst amount (wt.% to glycerol) is over 10%, it was observed that neither glycerol conversion nor product selectivities are changed significantly. The optimum molar ratios of glycerol to methanol, ethanol and tert-butyl alcohol were 1:6, 1:4, and 1:6, respectively. The appropriate reaction temperature and reaction time were 80 ºC and 8 h at which the selectivities of di-alkyl glycerol ethers and tri-alkyl glycerol ether arrive to the highest. However, the main product was mono-alkyl glycerol ether (MAGE) in glycerol dehydration with tert-butyl alcohol due to steric hindrance influence. If MAGE is considered as the target product, the glycerol dehydration with tert-butyl alcohol could be a good choice. Additionally, the glycerol dehydration with ethanol could be a better route converting biomass material into vehicle fuel in view of its desired yields of higher ethers. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000400851 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000400851 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20180219 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.30 n.4 2019 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318181697716224 |