Catalytic Technique of Bio–oil Conversion to Valuable Chemicals
Issue:
Volume 5, Issue 2-1, April 2017
Pages:
1-5
Received:
29 January 2017
Accepted:
7 February 2017
Published:
28 February 2017
DOI:
10.11648/j.ajche.s.2017050201.11
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Abstract: Catalytic technique of lignin derived bio–oil conversion, has been studied over Pt–γAl2O3 catalyst in a fixed–bed tubular micro–activity flow reactor at 673 K, 14 bar and space velocity 3 (g of Anisole)/(g of catalyst × h), in the presence of H2. A reaction network according to selectivity–conversion data is proposed to describe the evolution of products observed. The reactions include the following, anisole to benzene via HDO, to hexamethylbenzene via hydrodeoxygenation and alkylation, to phenol via hydrogenolysis, to 2–methylphenol via transalkylation and finally to 2, 4–dimethylphenol, 2, 4, 6–trimethylphenol and 2, 3, 5, 6–tetramethylphenol via transalkylation and alkylation. Experimental results indicated that the anisole conversion decreases about 20% with increasing the pressure from 8 to 14 bar at 673 K.
Abstract: Catalytic technique of lignin derived bio–oil conversion, has been studied over Pt–γAl2O3 catalyst in a fixed–bed tubular micro–activity flow reactor at 673 K, 14 bar and space velocity 3 (g of Anisole)/(g of catalyst × h), in the presence of H2. A reaction network according to selectivity–conversion data is proposed to describe the evolution of pr...
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Effects of Biochemical Wash on 100% Cotton Denim Apparel
Mst. Murshida Khatun,
Upama Nasrin Haq
Issue:
Volume 5, Issue 2-1, April 2017
Pages:
6-14
Received:
31 December 2016
Accepted:
20 January 2017
Published:
6 March 2017
DOI:
10.11648/j.ajche.s.2017050201.12
Downloads:
Views:
Abstract: The demand of chemical treatment on denim fabric to create a new look is increasing day by day. Now- a -days biochemical wash has become a trendy choice to customer. Manufacturers are in a rush to fulfill the demand of customer. They also are to take in consideration the quality of the product after the treatment. So This paper represents and compares the effect of biochemical wash on woven denim fabrics by means of GSM (gram per square meter) measurement, shrinkage test, count measurement, EPI & PPI measurement, comparison of color depth, air permeability test, rubbing test & hand feel test. Acid enzyme was used as a biochemical for the treatment. Treatment increases the GSM of woven denim apparels. Dimensional change is occurred due to enzyme wash. Lengthwise shrinkage can be ignored but widthwise shrinkage should be taken in concern. There is little effect on EPI & PPI due to enzyme wash on woven denim apparels. Enzyme wash decreases the depth of color on woven denim apparel. Air permeability also becomes lower due to treatment. Finally with the increase of time hand feel i.e. the apparels become softer due to enzyme wash.
Abstract: The demand of chemical treatment on denim fabric to create a new look is increasing day by day. Now- a -days biochemical wash has become a trendy choice to customer. Manufacturers are in a rush to fulfill the demand of customer. They also are to take in consideration the quality of the product after the treatment. So This paper represents and compa...
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