One type alone may hold double the carbon of all of the terrestrial fossil fuel, such as coal, oil and natural gas, including stores that could never be recovered.

To make rational use of industrial waste materials and reduce pollution, and to supply the substitute fuel for oil fired furnace, the writers have developed a new type liquid fuel Still Residue.

This paper describes the working principle, the structural characteristics and the result of the performance test and sea trial of the viscosimeter for CNT-B type fuel oil viscosity control equipment.