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Bioethanol from biomass waste
This document discusses the production of bioethanol from biomass waste such as oil palm empty fruit bunches (EFB). It notes that bioethanol is renewable, environmentally friendly and does not compete with food/feed. The document outlines the challenges of pretreatment and hydrolysis of lignocellulose and explains that white-rot fungi can be used in the biological pretreatment of EFB through enzymes that break down lignin. Visual changes in EFB are shown after biological pretreatment with white-rot fungi.
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Introduction to bioethanol production from biomass waste and an introductory movie clip.
Bioethanol is renewable, environmentally friendly, and does not compete with food.
First generation bioethanol produced from sugars and starch sources like sugarcane and corn.
Introduction to second generation bioethanol utilizing lignocellulose, a promising biomass.
Lignocellulose composed of glucose, starch, and cellulose is abundant and not food-competitive.
Oil palm waste is abundant; mass balance example shows 1 ton of FFB yields 230 kg of EFB.
Key challenges include purification, hydrolysis, fermentation, and waste management in bioethanol production.
Different pretreatment methods for lignocellulose: mechanical, physical, chemical, biological, and combinations.
Advantages include no chemicals, less energy use; disadvantages include time and space requirements.
Enzymes produced by white-rot fungi aid in lignin mineralization, enhancing biomass digestibility.
Visual comparison of untreated and pretreated oil palm empty fruit bunch.
Overview of the future vision for producing ethanol from expired fermented biomass.
Thank you message concluded the presentation.
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Bioethanol from biomass waste
- 1. Bioethanol from Biomass Waste Isroi(http://isroi.com)
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- 3. Bioethanol Renewable Environmentalfriendly Not compete with food and feed Unblended bioethanol fuel or Blended with gasoline C2H5OH + 3 O2 → 2 CO2 + 3 H2O + heat
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- 5. First Generation Bioethanol Ethanolfrom sugar (sugarcane, etc) and amylum (starch, casava, corn, etc).
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- 9. Why lignocellulose? Abundant Renewable Not compete with food and feet
- 10. Oil Palm Waste Abundantand un-use
- 11. Mass Balance inOil Palm Mill 1 ton FFB 230 kg EFB
- 12. Problems and Challenges PurificationHydrolysisFermentation Ethanol Waste water Lignocellulose Pretreatment
- 13. Pretreatment of Lignocelullose Mosieret al. (2005) Pretreatment: • Mechanical • Physical • Chemical • Biological • Combination Pretreatments have as a goal to improve the digestibility of the lignocellulosic biomass (Hendriks and Zeeman, 2008).
- 14. Advantages and Disadvantages AdvantagesDisadvantages • No chemical added • Take more times • Less energy used • Need more places • More environmental friendly Biological pretreatment of EFB by white-rot fungi compared with physical/chemical pretreatment
- 15. White-rot Fungi Enzymes producedby lignocellulytic fungi: • Laccase • Mangan Peroxidase (Mn P) • Lignin Peroxidase (Li P) White-rot fungi are the only known organisms that, to any extent, mineralize lignin to CO2 and water in pure culture (Gold and Alic, 1993)
- 16. Biological Pretreatment Untreated Afterpretreatment Visual Changes of OPEFB after pretreatment
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