WEKO3
アイテム
アブラヤシ葉柄からのバイオエタノールの効率的生産
https://doi.org/10.18997/00004248
https://doi.org/10.18997/00004248e2eb8e91-f1ee-4475-aae6-a1cd8344c6db
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sei_k_231.pdf (2.3 MB)
|
|
| Item type | 学位論文 = Thesis or Dissertation(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-08-18 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| タイトル | ||||||||
| タイトル | Efficient Bioethanol Production From Oil Palm Frond Petiole | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | アブラヤシ葉柄からのバイオエタノールの効率的生産 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Sharifah, Soplah Binti Syed Abdullah
× Sharifah, Soplah Binti Syed Abdullah
|
|||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The growing interest in bioenergy and particularly in second generation bioethanol (SGB) is a great challenge as the development of lignocellulose-related technologies are not very well established in the world. Another major constraint is the relatively higher cost of SGB, both in terms of investment costs and final energy costs. This causes the commercialization of research findings on SGB faces stiff competition from fossil fuels. Hence, this study was aimed to produce SGB but using a straight forward technology of first generation bioethanol from sugarcane juice. A newly identified lignocellulosic material having such characteristics is the fresh oil palm frond (OPF). OPF is the largest biomass source in the palm oil industry contributing 61% of total biomass. Fresh OPF juice can be readily obtained by just pressing the fresh OPF petiole, similar to sugarcane juice. In the first chapter, a literature studies was carried out to understand the gap in the research for liquid non-food feedstocks as fermentation medium for bioethanol production, particularly in the treatment and storage of the feedstock. In the second chapter, the potential of fresh OPF juice as a complete non-food medium for direct bioethanol production was evaluated. OPF juice contained sugars and other nutrients such as nitrogen, magnesium, calcium, zinc, phosphorus and sulphur, making it a potential medium for bioethanol fermentation. A promising yield of 0.38 g bioethanol per g sugars consumed was obtained after 24 hours of fermentation of fresh OPF juice without nutrient supplementation and without pH correction, which is comparable to synthetic medium as well as the bioethanol yield from sugarcane juice in the Brazilian bioethanol industry (0.40 g/g). Therefore, this study provides an opportunity for the use of fresh OPF juice as a new renewable, non-food and non-cellulosic feedstock for the bioethanol industry. The major challenge of using liquid feedstock as a fermentation medium is rapid degradation of sugars during storage. Therefore in the third chapter, the effect of OPF juice concentration and mild temperature storage on glucose content were discussed. The OPF juice was concentrated by evaporation of 30-70% (v/v) of water and stored at different temperatures (30-60°C) for 20 days. Regardless of OPF juice concentration, glucose content was declined rapidly (C/C. = 80%) at 30 and 40°C, while it remained stable at 50 and 60°C. Despite the high concentration of OPF juice (70%) did not significantly reduced the aw (0.93), the microbial spoilage in the OPF juice was inhibited when stored at 50°C and 60°C. Consequently, considering the minimum size of storage container, 50% concentrated OPF juice and 50°C storage was the alternative treatment condition of OPF juice prior to fermentation. In order to determine the feasibility of bioethanol production from OPF at industrial scale, the fourth chapter discuss the potential of developing a new approach of integrating a biorefinery plant for bioethanol production to an existing palm oil mill (POM). The concept proposed the production of fermentable sugars from OPF at six neighbouring POMs before being transported to the nearest biorefinery plant for bioethanol production which is located at one of the POMs. The production cost of fermentable sugars was estimated at $72/t OPF, resulting 3 times of profit based on current market price. The biorefinery plant has the capacity of producing 73.7 million litres of bioethanol per year from 345,600 tonnes fresh OPF petioles based on 51% yield. Current POM was estimated to generate an excess steam amounting to 177,000 tonnes and 5.9 GWh of electricity per year which is sufficient to produce fermentable sugars from OPF. However, minimum additional steam (9,000 t/y) required to produce bioethanol can be obtained by exploiting the OPF fibre residue as biofuel for boiler. The low production cost of bioethanol from OPF by integrated approach at $ 0.46 per litre is similar to production cost of corn bioethanol and cheaper than the current SGB cost. This finding suggests that an integrated approach is the most economically feasible option to commercialize bioethanol production in the near future, provided that the government make a move towards the commercialization by introducing a policy on SGB. | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1. Introduction and literature review||2. Oil palm frond juice as a novel and complete non-food medium for bioethanol fermentation||3. Effects of oil palm frond juice concentration and mild temperature storage on glucose content for bioethanol production||4. Efficient fermentable sugars production and bioethanol production from oil palm frond by integrated technology approach to an existing palm oil mill||5. Concluding remarks and suggestions for future research | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州工業大学博士学位論文 学位記番号:生工博甲第231号 学位授与年月日:平成27年3月25日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Bioethanol | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Biorefinery | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Non-food fermentable sugars | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Oil palm frond | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Production cost | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Mild temperature storage | |||||||
| アドバイザー | ||||||||
| 白井, 義人 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第231号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2015-03-25 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 平成26年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/00004248 | |||||||
| ID登録タイプ | JaLC | |||||||
