Archive for 6.4 Biomass

Biofuels in the Greater Mekong Subregion

In the Greater Mekong Subregion (GMS), a growing demand for biofuels could help support the agriculture sector and provide an alternative source of energy. However, if deployed unsustainably, biofuels development can be associated with numerous risks that have negative ramifications for human development. This paper reviews existing literature and integrates various themes to provide an overview of four main issues related to biofuels deployment in the GMS: the need for alternative energy, risks to food security, considerations for environmental management, and opportunities for rural development. This paper was prepared as a discussion piece for the GMS 2020 International Conference (20–21 February 2012 in Bangkok, Thailand).

6 Renewable Energy, 6.4 Biomass

Chinese Biomass Energy Technology Development Roadmap

This report was prepared by the Center for Renewable Energy Development, Energy Research Institute of NDRC. The international experts at the Center for Resource Solutions also provided valuable input to the research. The roadmap assessed  the status, potentials and objectives of various biomass technologies in China; proposed development approaches for technology R&D, pilot projects development, as well as application promotions; and identified supporting incentives from aspects of both technologies and regulations.

6 Renewable Energy, 6.4 Biomass

Consultation on Biomass Power Generation Technology Improvement

Biomass resources are very abundant in China, with great energy potential. Energy utilization from biomass is an important way to national economic sustainable development on renewable energy, as well as reducing pollution to environment. Renewable Energy Law has been legislated in February 2005 in China, in which the development and utilization of renewable energy ranks priority item among Chinese energy development. CRESP cooperated between the State Development and Reform Commission of China and the World Bank aims at expanding and developing China’s renewable energy utilization to accelerate technological scale-up and industrialization process. CRESP office has entrusted and supported Guangzhou Institute of Energy Conversion (GIEC), CAS to make an elaborate analysis and assessment of cogency on the application of biomass electricity generation technology in China, which constitutes part 1 of this report, and is submitted to the Expert Workshop on “Analysis of Potential in China for Improvement in Biomass Power Generation Technology” of CRESP in April 2005. Based on the analysis and assessment, Experts and researchers participating in the conference discussed and expressed various opinions on some important points such as foreign and domestic relevant technologies and future development trend, biomass energy technological industrialization and which technologies are priority of industrial support and special measures. Everyone has the consensus that energetically developing biomass power generation technology is of importance to national sustainable development, particular to the wide rural and remote areas in China. The meeting summary constitutes part 2 of this report. As described in part 1, present key problem of scale-up utilization for biomass power generation technology is that China is very weak in general manufacture and production ability of biomass power generation related equipment. In order to advance China’s biomass power generation technology level and relevant energy equipment manufacturing ability, CRESP office particularly set up the Competitive Grant-in-aid Project according to GoC/ World Bank/ GEF, and entrust GIEC with the project implementation scheme, including the emphasis of technology advance items to be supported by ESCRP, qualifications for supported objectives and examination standard. These constitute part 3 of this report.

6 Renewable Energy, 6.4 Biomass

Preparatory Work for 1 Biomass and 1 Wind Power Development Projects by Jiangsu Guoxin Investment Group Limited

As one of the ISSF donation projects, the project implementation helps and promotes that the company completed the pre-development work of the two projects: 1) the installation of 47 units of 1.5MW WTGS at Jiangsu Guoxin Dongling Wind Farm, with the total installed capacity of 70,500 KW, which started the construction on September 8,2008, had completed by the end of December 2009, and put into commercial operation in February 2010, with the power generation of about 148.1 million KWh annually. 2) Jiangsu Guoxin Yancheng Biomass Power Plant – Jiangsu Guoxin Yancheng Biomass 30MW Biomass Power Project, the annual consumption of the biomass stalks was over 0.22 million tons, and the annual power generaion is 180 million KWh.

6 Renewable Energy, 6.4 Biomass

The Study and Manufacture of the Scaled Biomass Fixed-bed Gasifier

The project started in early 2008, and it was hosted and completed by Wu Youqing of Resources and Environment Engineering College of ECUST. The specific research work of the project carried out: the research of biomass fuels physical and chemical properties and the gasification process characteristics; the determination of gasifier structure parameters and material selection; the engineering design of the gasifier prototype and facilities; the research of the gasifier thermal operation and operation optimization. The project developed the scale-up biological fixed-bed gasification technology with independent intellectual property. And it developed the biological fixed-bed gasification prototype with the diameter of 3m and the the average single-oven gas production to 4,585m3/h. Both the scale extent and the run indicators of the project have reached the international advanced level.

6 Renewable Energy, 6.4 Biomass

Demonstration Power Plant Using Environment-friendly and High-efficiency Fixed Bed Biomass Gasifier

Gaoyou Linyuan Technology Development Co.,Ltd.researched and manufactured China’s first and also China’s largest power generation integrated device using environment-friendly and high-efficiency fixed bed biomass gasifier. Through the development and application of raw materials molding, fixed-bed gasification, special process for purification and the combination with the advanced domestic electric generating units, the device has been put into operation for power generation. The project has co-generation and co-supply function of power, gas, heat, oil and coal dust. It can not only generate electricity integrated to the power grid, but also can provide rural towns with gas and heat and supply the industry with burnable tar and coal dust. The modular combination can be implemented in accordance with raw material supply conditions to adapt to China’s national conditions.

6 Renewable Energy, 6.4 Biomass

Scale-up the Use of Biomass for Electricity Generation through Drying of Biomass Fuels by the Waste Heat of Boiler Flue Gas

To improve the existing 110t/h high-temperature and high-pressure boiler efficiency and generator economics, Jiangsu Guoxin Rudong Biomass Power Co.,Ltd., sponsored by CRESP, makes use of the waste heat of boiler flue gas for drying biomass, and then utilizes biomass fuel for power generation, which achieves the purpose of energy saving and environmental protection. Currently the project is being implemented.

6 Renewable Energy, 6.4 Biomass

Biomass Dense Molding Equipment in a Complete Set

It is one of the sub-grant projects in the first round of of National biomass competitive grant activities. The project has completed the block design, development and production of the split ring shape molding machines with independent intellectual property, which makes the nominal productivity be more than 1.0t/h, and the use life of extrusion wheels and molding models reach 800t and 1000t respectively. The products have been put into market in large scale.

6 Renewable Energy, 6.4 Biomass

An Industrialized Installation for Catalytic Cracking of Biomass Tar

The project is one of the sub-guant projects in the second round of biomass competitive grant activities at the national level, which is held by Wu Youqing of ECUST. The project objective task is to research and develop the prototype of the industrial-scale catalytic cracking devices of biomass tar. The project mainly carried out the industrial technology research and development of the catalytic cracking behavior, process conditions, device structure properties and conversion rate, etc., which can solve completely many problems, such as the tar damage to the reliable operation of process equipment faced by biomass thermal chemical processes generally, the efficiency reduction of biomass conversion, the destruction of the surrounding environment, the hard effective use of itself, and so on. The study of the project has formed the efficient and clean biomass tar cracking equipment and the core technology of catalyst formulations with independent intellectual property, by which the efficient and clean biomass thermo-chemical technology without tar can be promoted to improve. The project is currently underway.

6 Renewable Energy, 6.4 Biomass

Development of Briquetting Machine Model BCYK

It is one of the sub-grant projects in the second round of of National Biomass competitive grant activities. It is planed that the project develops the biomass briquetting molding prototype with low energy consumption at normal tempreture, through reasearching the two core technologies of the formation of power transmission and molding module. The prototype changes the traditional “compression molding with positive pressure at high temperature ” to “grind molding with partial tensor at normal temperature”, which solves the problems of “poor force conductivity” and “high moisture” of the biomass raw materials of straw type from the mechanism, and reduces the pressure and energy consumption needed by molding radically. The molding machines improve effectively the stability of the equipment and extend the working life of the core components. The project is currently underway.

6 Renewable Energy, 6.4 Biomass