CO2 Reduction by Cogeneration System and Fuel Switch  (Ricoh Fukui Plant/Japan)
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| Natural gas supply by tanker trucks |
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Fukui Plant carried out a fuel switch from kerosene to natural gas and introduced a gas-engine-type cogeneration system, which has been in operation since July 2005. Subsidies from the New Energy and Industrial Technology Development Organization (NEDO) System were used to introduce the system.
In introducing the system, a natural gas satellite was installed so that the natural gas could be supplied by tanker trucks because the infrastructure for supplying natural gas was not available at that time.
The introduction of the system accompanying a natural gas satellite was the first such project in the Hokuriku District and served as a model case for the region. The total CO2 reduction effect in fiscal 2006 was approximately 4,625 tons, including the amount reduced by the fuel switch.
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Introduction of Air Exchanger  (Ricoh Industrie France S.A.S./France)
Ricoh Industrie France S.A.S. (RIF), a manufacturing subsidiary in France, introduced an "air exchanger" into the thermal paper production line in September 2006. To produce thermal paper, base paper is coated with a heat sensitizer, which is dried with a drier, and the process is repeated. Driers have been installed at four spots along the manufacturing line at RIF. An air exchanger is a mechanism that uses waste heat generated by a drying process in another drying process that heats new air. The volume of natural gas used in the drying processes can be reduced using this mechanism. The reduction in the volume of natural gas used by the driers will result in a reduction in annual CO2 emissions of 420 tons. It is also expected to reduce costs by 75,000 euros a year.
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