Share this page

Biomass energy: Solid Recovered Fuel 'Green Coal' - RPPWF™

Biomass energy: Solid Recovered Fuel 'Green Coal' - RPPWF™




Conceivable applications

BGCT JAPAN believes that our product called "RPPWF™" should be a promising alternative fuel resource to coal and oil, prepared from non-hazardous, non-recyclable papers, plastics/plants and woods waste, and other households and industrial wastes.

"Prepared" above means processed, homogenized, and upgraded to a quality for commercial use. Production site for RPPWF™ can be set up locally for regional distribution (i.e. to local power plants).

Alternative resources, which are more sustainable, to coal and oil are highly preferred for electricity generation today to contribute to environmental sustainability.

Competitive advantage

RPPWF™ is a class 4 solid recovered fuel, registered in the international fuel list CEN 343, and is expected to be the promising alternative resource to coal and oil. For example, RPPWF™ has a higher calorific value (over 25MJ/Kg) than coal (generally between 19-22 MJ/Kg). Compared to coal, RPPWF™ has about 20% less moisture and approximately 50% less ash. The content of Sulphur in RPPWF™ is almost negligible while coal generally contains up to about 10%.

Furthermore, the CO2 emission from burning RPPWF™ is almost one third, compared to that from burning coal. Because of this ‘green’ characteristics, RPPWF™ is alternatively called Green Coal™ (this name is also a registered trademark).

RPPWF™ also has higher biomass contents than conventional biomass resources. In the case of RPPWF™, more than 85% is biomass content (rests are plants or plastics).
RPPWF™ satisfies the European standard for solid recovered fuel, CEN 343, and also has certifications of ISO 14001 and ISO 9001.

Technology Data

Technology data


Because the raw materials for RPPWF™ are 100% biomass (i.e. paper, plant and wood wastes), CO2 emission of the procurement of raw materials can be mostly reduced to zero. Moreover, biomass as raw materials means less cost to procure than any other fuel resources such as coal and oil. Heat recovery rate of RPPWF™ is over 70% and the combustion efficiency is about 98% which are much higher than those of coal and oil.
The CO2 emission reduced from producing RPPWF™ can be used for CO2 credit for domestic and/or international emissions trading.
The production process of RPPWF™ is operated with heat-pump technology, a device proving heat through low carbon emission, which further improves the overall emission of the production process.

Technical maturity / Past record of introduction

Creative Co.,Ltd., the owner of the patent and technology for RPPWF™, is authorized by the Government of Japan for the delegation of ODA program in India. City of Ahmedabad signed a MOU with us in January 2009 for RPPWF™ project. We also signed a MOU with the States of Gujarat in January 2011 for deployment of RPPWF™ in the City of Ahmedabad where a demonstration project is currently undertaking with an annual production capacity of 50,000 tons per year.

We recently started a new recovery operation and job creation project in Tamura City of Fukushima Prefecture, Japan, cooperated with the Ministry of Economy, Trade and Industry of Japan. We aim to manufacture RPPWF™ about 100,000 tons per year. The raw materials are procured domestically as well as imported from Malaysia. The final products are to be distributed locally to power plants.

There also are ongoing projects worldwide: 6 in Asia and 2 in Europe.

Conceivable risk

Language barrier, law and regulations of candidate countries might become challenges when installing RPPWF™ production line and establishing supply chain network. Climate conditions could affect the long-term reliability of the RPPWF™ production. Good education for operators at the production site must be conducted to maintain the efficiency of RPPWF™ production.

Information on patent related to this technology

Creative Co.,Ltd., headquartered in City of Hiroshima, Japan, owns the patent for RPPWF™. We are the exclusive licensee of RPPWF™.

Company Data

Company data

Address 3F, Mizuno Building 2, 5-35-6 Shinbashi Minato-ku,
Tokyo, 105-0004, Japan
Capital 10 million yen
Contact person

Michihiro Kiyama 
Tel: 03-6721-5766
Fax: 03-6721-5767

Number of employees 4
Date of company foundation 26th of January 2012
The type of business R&D and manufacturing of solid fuel, and energy consulting service provider

International operation

Number of employees for international operation(including overseas operation, if any) 4
Overseas offices City , Country Name of company

Modality of business transaction

We are looking for business partners who can firstly import our product from Japan to sell in local areas. Eventually we would like to install manufacturing facilities to produce locally for local consumption. We will provide our business partners and their employees with a training for manufacturing and maintenance skills and we will also organize visits to our manufacturing site in Japan.

Licensing of patent
We will offer license of our technologies to our business partners.


Schematic illustration of the technology

1. Characteristics of RPPWF™


2. Comparison of CO2 Emission from Fuel Combustion (tCO2/t)


3. Technical Comparison of Coal and RPPWF™


4. Long-Term Comparison of CO2 Emission from Coal and RPPWF™


5. Manufacturing Process of RPPWF™


6. Fukushima Project (Waste Agricultural Biomass into Energy)


Registered Category

  • Low carbon & energy conservation : Energy efficiency / Renewable energy
  • Waste treatment & management : Recycling of plastics / Municipal solid waste / Industrial waste