Biomass Energy

Numbering Code U-AGR05 3E183 LJ80 Year/Term 2022 ・ First semester
Number of Credits 2 Course Type Lecture
Target Year 3rd year students Target Student
Language Japanese Day/Period Tue.4
Instructor name KAWAMOTO HARUO (Graduate School of Energy Science Professor)
Outline and Purpose of the Course The global warming issue, arising from the use of fossil resources, is an urgent issue. Forests fix nearly 10% of atmospheric CO2 every year along with the solar energy equivalent to 4-5 times the world's primary energy demand. In this lecture, carbon cycle, biomass energy, and biochemicals are outlined with a focus on the roles of forests.
Course Goals Systematically understand the characteristics of carbon cycles and the role of forests, the current status and issues of the use of biomass energy and biochemicals; and to further understand wood chemistry at high temperature, which is a fundamental science for wood biomass conversion.
Schedule and Contents ・Energy and environmental issues (once)
 An outline of the problem of global warming derived from the use of fossil fuels and the social consequences are provided.
・Carbon circulation and biomass resources on earth (once)
 An outline of the carbon cycle on earth is provided, as is an explanation of the potential of biomass, the role of forests, etc.
・Characteristics of biomass resources from the perspective of energy and chemical conversion (once)
 Classification of biomass resources, and chemical and organizational characteristics are discussed in relation to transformational technologies.
・Biomass energy (four times)
 After introducing the burning properties of wood, pellet fuel, biomass power generation, bioethanol, biodiesel, biomethane, etc. are explained, and the present state, problems, and future prospects of utilization are discussed. In addition, the possibility of thermal decomposition method, supercritical fluid technology, etc. are discussed as a method to solve problems.
・Bio-Chemicals (once)
 The present status of petroleum based chemical utilization is outlined, and the possibility of substitution with bio-chemicals is discussed.
・Rapid thermal degradation, near-term gasification transformational technology (twice)
 Rapid thermal decomposition and gasification technology as an application to expand utilization of wood biomass is explained.
・Basic science of wood chemical biomass transformation at high temperature (four times)
 Understanding of cellulose chemistry, hemicellulose chemistry, and lignin chemistry in the high temperature range (200-1000 °C) will be explained.

・Questions are answered in the laboratory (room 205 in the 11th General Research Building) during the feedback session. Prior email reservation is required.
Evaluation Methods and Policy [Evaluation method]
Written examination grades and class participation.
Comprehensive evaluation considering the written examination (out of 100 points) and class participation (attendance and attitude 15 points).

[Evaluation criteria]
Evaluation standards and policies are based on the those described in the Faculty of Agriculture Handbook for the relevant year.
Course Requirements None
Study outside of Class (preparation and review) Preparation: nothing in particular
Review: Investigate related matters, such as lecture content, and share the information.
Textbooks Textbooks/References Not used.
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