| 摘要 |
A method of cleaning the fuel gas feed to a internal combustion engine comprises passing the fuel gas through a filter containing activated earth. Preferably the activated earth is acid treated bentonite, a type of clay. The filter may consist of a hollow container having an inlet and outlet, wherein the container is packed with activated earth. The fuel gas may be biogas derived from the decomposition of waste materials. The container may be in the form of a refillable cartridge so that the activated earth can be regenerated as required. Gas fired internal combustion engines which are run on contaminated fuel suffer from the buildup of internal deposits and corrosion. This is a particular problem with engines fuelled by biogas, e.g. from waste decomposition. By filtering the fuel via an activated earth filter, substantial improvements can be obtained. |
