Delignification of Date Palm Fronds using Modified Organosolv Technique

Abstract In this study, modified organic solvent (organosolv) method was applied to remove high lignin content in the date palm fronds (type Al-Zahdi) which was taken from the Iraqi gardens. In modified organosolv, lignocellulosic material is fractionated into its constituents (lignin, cellul...

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Autores principales:	Yasmeen Salih Mahdi, Asem Hassan Mohammed, Alaa Kareem Mohammed
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2017
Materias:	Biomass pre-treatment, delignification, lignin, organosolv, date palm fronds. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/1197b68262b64c418055670f96f070cc
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spelling	oai:doaj.org-article:1197b68262b64c418055670f96f070cc2021-12-02T07:16:40ZDelignification of Date Palm Fronds using Modified Organosolv Technique10.22153/kej.2017.07.0011818-11712312-0789https://doaj.org/article/1197b68262b64c418055670f96f070cc2017-09-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/370https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Abstract In this study, modified organic solvent (organosolv) method was applied to remove high lignin content in the date palm fronds (type Al-Zahdi) which was taken from the Iraqi gardens. In modified organosolv, lignocellulosic material is fractionated into its constituents (lignin, cellulose and hemicellulose). In this process, solvent (organic)-water is brought into contact with the lignocellulosic biomass at high temperature, using stainless steel reactor (digester). Therefor; most of hemicellulose will remove from the biomass, while the solid residue (mainly cellulose) can be used in various industrial fields. Three variables were studied in this process: temperature, ratio of ethanol to water and digestion time. Statistical experimental design type Central Composite Design (CCD) has been used to find a mathematical relationship between the variables and the remaining lignin percent as dependent variable. The results obtained in this study were represented by a polynomial mathematical equation of the second degree. The results showed that the best digestion time was (80 minutes), which gave the best percent remaining concentration of lignin (3%) at temperature of 185oC and ratio of ethanol: water equal to 50: 50 wt/wt. In order to reduce digesting time, the effect of using different catalysts have been studied such as (NaOH, H2SO4, Ca (OH) 2) at low concentration (0.025, 0.025, 0.05M) respectively. It was found that the best catalyst is sodium hydroxide at concentration (0.025) mol/L which gave the same percent of lignin 3% but with low digestion time about 30 min. Keywords: Biomass pre-treatment, delignification, lignin, organosolv, date palm fronds. Yasmeen Salih MahdiAsem Hassan MohammedAlaa Kareem MohammedAl-Khwarizmi College of Engineering – University of BaghdadarticleBiomass pre-treatment, delignification, lignin, organosolv, date palm fronds.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 13, Iss 3 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biomass pre-treatment, delignification, lignin, organosolv, date palm fronds. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Biomass pre-treatment, delignification, lignin, organosolv, date palm fronds. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Yasmeen Salih Mahdi Asem Hassan Mohammed Alaa Kareem Mohammed Delignification of Date Palm Fronds using Modified Organosolv Technique
description	Abstract In this study, modified organic solvent (organosolv) method was applied to remove high lignin content in the date palm fronds (type Al-Zahdi) which was taken from the Iraqi gardens. In modified organosolv, lignocellulosic material is fractionated into its constituents (lignin, cellulose and hemicellulose). In this process, solvent (organic)-water is brought into contact with the lignocellulosic biomass at high temperature, using stainless steel reactor (digester). Therefor; most of hemicellulose will remove from the biomass, while the solid residue (mainly cellulose) can be used in various industrial fields. Three variables were studied in this process: temperature, ratio of ethanol to water and digestion time. Statistical experimental design type Central Composite Design (CCD) has been used to find a mathematical relationship between the variables and the remaining lignin percent as dependent variable. The results obtained in this study were represented by a polynomial mathematical equation of the second degree. The results showed that the best digestion time was (80 minutes), which gave the best percent remaining concentration of lignin (3%) at temperature of 185oC and ratio of ethanol: water equal to 50: 50 wt/wt. In order to reduce digesting time, the effect of using different catalysts have been studied such as (NaOH, H2SO4, Ca (OH) 2) at low concentration (0.025, 0.025, 0.05M) respectively. It was found that the best catalyst is sodium hydroxide at concentration (0.025) mol/L which gave the same percent of lignin 3% but with low digestion time about 30 min. Keywords: Biomass pre-treatment, delignification, lignin, organosolv, date palm fronds.
format	article
author	Yasmeen Salih Mahdi Asem Hassan Mohammed Alaa Kareem Mohammed
author_facet	Yasmeen Salih Mahdi Asem Hassan Mohammed Alaa Kareem Mohammed
author_sort	Yasmeen Salih Mahdi
title	Delignification of Date Palm Fronds using Modified Organosolv Technique
title_short	Delignification of Date Palm Fronds using Modified Organosolv Technique
title_full	Delignification of Date Palm Fronds using Modified Organosolv Technique
title_fullStr	Delignification of Date Palm Fronds using Modified Organosolv Technique
title_full_unstemmed	Delignification of Date Palm Fronds using Modified Organosolv Technique
title_sort	delignification of date palm fronds using modified organosolv technique
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2017
url	https://doaj.org/article/1197b68262b64c418055670f96f070cc
work_keys_str_mv	AT yasmeensalihmahdi delignificationofdatepalmfrondsusingmodifiedorganosolvtechnique AT asemhassanmohammed delignificationofdatepalmfrondsusingmodifiedorganosolvtechnique AT alaakareemmohammed delignificationofdatepalmfrondsusingmodifiedorganosolvtechnique
_version_	1718399501791657984

Delignification of Date Palm Fronds using Modified Organosolv Technique

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