أمثلة العمليات الرئيسة في إنتاج الوقود الحيوي من بعض مخلفات الصناعات الغذائية الصلبة

الموضوعات

علوم بحتة وطبيعية

روابط وملفات

التعريف والنوع

رقم الوثيقة

fb87408d-f4a0-41c4-b4a8-2943aba25d11

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل دكتوراة

نوع الملف

pdf text

أسماء الملفات

1962240_1.pdf

بيانات النشر

ترجمة العنوان

Key processes optimization of biofuels production from some solid wastes of food industry

ألقاب المؤلفين

[{"name_ar":"غسان وليد أبوشامة","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"فادي خضر","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"فراوسوا قري بث","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

أمثلة العمليات الرئيسة في إنتاج الوقود الحيوي من بعض مخلفات الصناعات الغذائية الصلبة

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

The efficiency of lignocellulosic biomass conversion in bio-fuel production is mainly dependent on the cost and the yield of both the hydrolytic process to release fermentable sugars and fermentation process to produce bioethanol. In this study, tow local samples of olive pomace (OP) from different origin (Daraa, Al-Suwayda) were characterized. The efficiency of both acid hydrolysis and enzymatic hydrolysis to release sugar monomers from OP was tested. The kinetic study of acid hydrolysis reaction was performed, and the effects of hydrolysis time, sulfuric acid concentration, OP particles size and OP load on acid hydrolysis yield were investigated. The effect of acid, alkaline or aquatic pretreatment step on the yield of reducing sugars liberated during OP enzymatic hydrolysis was studied. On the other hand, the effect of time, temperature, pH, OP load, drying temperature of OP, and enzyme type and enzyme concentration on the enzymatic hydrolysis yield of alkali pretreated OP. the fermentation on the enzymatic hydrolysate was achieved by commercial baker’s yeast (saccharomyces cerevisiae), and the effect of time, temperature, pH, nutrients, and isomerization reaction on the yield of ethanol produced during fermentation were studied. Chemical analysis for the tow samples of OP showed that there is no significant effect of OP source on its chemical composition. The kinetic of OP acid hydrolysis reaction can be described as a pseudo first-order reaction rate, and all the studied factors (hydrolysis time, sulfuric acid concentration, OP particles size and OP load) has significantly affected the yield of OP acid hydrolysis. This study revealed the importance of pretreatment step for the OP enzymatic hydrolysis. Alkaline pretreatment of OP has achieved a yield of fermentable sugars during enzymatic hydrolysis higher than that accomplished for the acid or aquatic pretreated OP. In general, at optimal conditions, enzymatic hydrolysis yield of alkali pretreated OP (about 72%) was higher than OP acid hydrolysis yield (about 62%). However, nutrients adding didn’t affect significantly the yield of ethanol produced during the fermentation of enzymatic hydrolysate, while, the fermentation time, pH, and temperature had significantly affected the ethanol yield. Isomerization reaction for enzymatic hydrolysate played an important role in the improvement of the yield of ethanol produced during fermentation. At optimal conditions, the maximum ethanol yield was 82%, and maximum conversion yield of OP to ethanol was 103g/kg of OP, that permit the ability of its exploitation on the industrial scale

إشراف وإعداد

الإشراف

فادي خضر, فراوسوا قري بث

الإعداد

غسان وليد أبوشامة

الاقتباسات الببليوغرافية