Removal of siloxanes from biogas using acetylated silica gel as adsorbent

Abstract Biogas can be used as an alternative energy source for producing heat and electricity; however, volatile methylsiloxanes (VOSiC) present in biogas can severely damage heat exchangers, turbines and gas engines. Consequently, efficient removal of VOSiC from biogas that is used as a biofuel is...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yu-Heng Liu, Ze-You Meng, Ji-Ye Wang, Yan-Fei Dong, Zi-Chuan Ma
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	Siloxanes Biogas Acetylated silica gel Adsorption Removal of the siloxanes Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/f45a355d733444378d6bffd45ed07de7
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f45a355d733444378d6bffd45ed07de7
record_format	dspace
spelling	oai:doaj.org-article:f45a355d733444378d6bffd45ed07de72021-12-02T11:08:06ZRemoval of siloxanes from biogas using acetylated silica gel as adsorbent10.1007/s12182-019-0336-41672-51071995-8226https://doaj.org/article/f45a355d733444378d6bffd45ed07de72019-06-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-0336-4https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Biogas can be used as an alternative energy source for producing heat and electricity; however, volatile methylsiloxanes (VOSiC) present in biogas can severely damage heat exchangers, turbines and gas engines. Consequently, efficient removal of VOSiC from biogas that is used as a biofuel is required. In this work, acetylated silica gel (Ac@SG) was synthesized, via treatment of microporous silica gel (SG) with acetic anhydride as an adsorbent, for removal of VOSiC from biogas, and characterized with XRD, SEM–EDS, N2-BET and FT-IR. This Ac@SG adsorbent exhibited a meso-/microporous structure and hydrophobic surface, indicating it was a more efficient adsorbent for removing hexamethyldisiloxane (L2) and octamethylcyclotetrasiloxane (D4) from biogas samples than conventional SG. It was found that the adsorption capacities of Ac@SG reached 304 mg L2/g for hexamethyldisiloxane and 916 mg D4/g for octamethylcyclotetrasiloxane at lower temperatures in the experimental range, and water had no significant effect on its absorption efficiency. The used Ac@SG could be easily regenerated by heating it at 110 °C, and the adsorption capacity of recycled Ac@SG for hexamethyldisiloxane and octamethylcyclotetrasiloxane was kept constant in four recycle adsorption experiments.Yu-Heng LiuZe-You MengJi-Ye WangYan-Fei DongZi-Chuan MaKeAi Communications Co., Ltd.articleSiloxanesBiogasAcetylated silica gelAdsorptionRemoval of the siloxanesScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 4, Pp 920-928 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Siloxanes Biogas Acetylated silica gel Adsorption Removal of the siloxanes Science Q Petrology QE420-499
spellingShingle	Siloxanes Biogas Acetylated silica gel Adsorption Removal of the siloxanes Science Q Petrology QE420-499 Yu-Heng Liu Ze-You Meng Ji-Ye Wang Yan-Fei Dong Zi-Chuan Ma Removal of siloxanes from biogas using acetylated silica gel as adsorbent
description	Abstract Biogas can be used as an alternative energy source for producing heat and electricity; however, volatile methylsiloxanes (VOSiC) present in biogas can severely damage heat exchangers, turbines and gas engines. Consequently, efficient removal of VOSiC from biogas that is used as a biofuel is required. In this work, acetylated silica gel (Ac@SG) was synthesized, via treatment of microporous silica gel (SG) with acetic anhydride as an adsorbent, for removal of VOSiC from biogas, and characterized with XRD, SEM–EDS, N2-BET and FT-IR. This Ac@SG adsorbent exhibited a meso-/microporous structure and hydrophobic surface, indicating it was a more efficient adsorbent for removing hexamethyldisiloxane (L2) and octamethylcyclotetrasiloxane (D4) from biogas samples than conventional SG. It was found that the adsorption capacities of Ac@SG reached 304 mg L2/g for hexamethyldisiloxane and 916 mg D4/g for octamethylcyclotetrasiloxane at lower temperatures in the experimental range, and water had no significant effect on its absorption efficiency. The used Ac@SG could be easily regenerated by heating it at 110 °C, and the adsorption capacity of recycled Ac@SG for hexamethyldisiloxane and octamethylcyclotetrasiloxane was kept constant in four recycle adsorption experiments.
format	article
author	Yu-Heng Liu Ze-You Meng Ji-Ye Wang Yan-Fei Dong Zi-Chuan Ma
author_facet	Yu-Heng Liu Ze-You Meng Ji-Ye Wang Yan-Fei Dong Zi-Chuan Ma
author_sort	Yu-Heng Liu
title	Removal of siloxanes from biogas using acetylated silica gel as adsorbent
title_short	Removal of siloxanes from biogas using acetylated silica gel as adsorbent
title_full	Removal of siloxanes from biogas using acetylated silica gel as adsorbent
title_fullStr	Removal of siloxanes from biogas using acetylated silica gel as adsorbent
title_full_unstemmed	Removal of siloxanes from biogas using acetylated silica gel as adsorbent
title_sort	removal of siloxanes from biogas using acetylated silica gel as adsorbent
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/f45a355d733444378d6bffd45ed07de7
work_keys_str_mv	AT yuhengliu removalofsiloxanesfrombiogasusingacetylatedsilicagelasadsorbent AT zeyoumeng removalofsiloxanesfrombiogasusingacetylatedsilicagelasadsorbent AT jiyewang removalofsiloxanesfrombiogasusingacetylatedsilicagelasadsorbent AT yanfeidong removalofsiloxanesfrombiogasusingacetylatedsilicagelasadsorbent AT zichuanma removalofsiloxanesfrombiogasusingacetylatedsilicagelasadsorbent
_version_	1718396269191233536

Removal of siloxanes from biogas using acetylated silica gel as adsorbent

Ejemplares similares