(For USM Staff/Student Only)

EngLib USM > Ω School of Chemical Engineering >

Recovery of glucose from empty fruit bunch using ionic liquid ([bmim]cl) pretreatmen/Ang Tse Ming

Recovery of glucose from empty fruit bunch using ionic liquid ([bmim]cl) pretreatment_Ang Tse Ming_K4_2011_NI
Sejak kebelakangan ini, penghasilan bioetanol generasi kedua daripada biojisim lignoselulosa seperti tandan buah kosong (TKS), telah menarik banyak perhatian daripada pelbagai pihak sebagai sumber tenaga alternatif. Namun, biojisim lignoselulosa sangat bandel, teknik pra-rawatan yang sesuai adalah diperlukan agar biojisim boleh dihidrolisis oleh enzim. Sebahagian besar kaedah pra-rawatan kini tidak memecahkan struktur biojisim dengan berkesan, terutamanya darjah penghabluran selulosa, yang merupakan halangan utama untuk enzim hidrolisis yang cekap. Selain itu, sesetengah proses pra-rawatan yang dilakukan pada suhu dan tekanan yang tinggi telah menghasilkan perencat fermentasi yang kuat dan seterusnya mengurangkan hasil bahan bakar bioethanol. Kajian ini telah dilaksanakan dengan penggunaan cecair ionik ([BMIM]Cl) dalam teknik pra-rawatan bertujuan untuk memecahkan struktur biojisim dan menyediakan substrat biojisim yang dapat dihidrolisis dengan mudah dan menghasilkan gula yang boleh difermentasi. Keberkesanan proses akan ditinjau daripada pelbagai parameter pra-rawatan seperti suhu reaksi, peratus biojisim dan masa reaksi. Dalam kajian ini, biojisim telah dikaji secara mikroskopik (kemikroskopan electron imbasan) untuk memahami pengurangan darjah penghablurannya. Pemulihan glukosa yang maksima setinggi 85.15% telah dicapai pada suhu pra-rawatan 100 ◦ C dan peratus biojisim 8% dalam masa reaksi 90 minit. _____________________________________________________________________________________________ Production of second generation bioethanol (SGB) from lignocellulosic biomass such as empty fruit bunch (EFB), has drawn much attention in recent years as a promising alternative source of energy. However, the lignocellulosic biomass is highly recalcitrant, which required a proper pretreatment technique to make the biomass amenable for enzymatic hydrolysis. Most of the current pretreatment methods do not effectively disrupt the biomass structure, especially the crystallinity of cellulose, which is a major bottleneck for efficient enzymatic hydrolysis. Besides, some pretreatment processes conducted at high temperatures and pressures results in the formation of strong fermentation inhibitors and thus decrease yields of fuel bioethanol. The present study is intended by developing a novel ionic liquid ([BMIM]Cl) pretreatment technique with the specific objectives of disrupting the biomass structure and providing a biomass substrate that can be easily hydrolyzed and form fermentable sugars. The effectiveness of the processes will be investigated from the study of various pretreatment parameters such as temperature, solid loading and retention time. In the current work, the components are characterised microscopically (scanning electron microscopy) in order to understand this decrease in crystallinity. The glucose recovery was maximized at 85.15% with pretreatment conditions of 100 ◦C and 8% solid loading for a retention time of 90 min.
Contributor(s):
Ang Tse Ming - Author
Primary Item Type:
Final Year Project
Language:
English
Subject Keywords:
bioethanol ; glucose ; fermentable sugars
First presented to the public:
4/1/2011
Original Publication Date:
10/6/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 87
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-10-06 14:33:49.049
Submitter:
Nor Hayati Ismail

All Versions

Thumbnail Name Version Created Date
Recovery of glucose from empty fruit bunch using ionic liquid ([bmim]cl) pretreatmen/Ang Tse Ming1 2020-10-06 14:33:49.049