But for a long time, only temperature and time are considered to be the controlling factors, whereas the pressure effect of pressure on the vitrinite reflectance and hydrocarbon generation is still unclear.

It is possessed good comprehensive properties of low-temperature aviation grease HR-4301 re- searched by polyurea thickening synthetic hydrocarbon,which comes to the level of imported grease,and can satisfy the lubricating requirement of airplane.

The properties of the 20 # synthetic hydrocarbon aviation lubricating oil are studied, including the viscosity-temperature characteristics, oxidation stability, metal erosion resistance, anti-metal wearing property and altitude foaming property.

In order to improve the magnetic and chemical stability of the synthetic hydrocarbon that is based on ferro- fluids,and by which,synthetic hydrocarbons were used as their carriers.

Synthesis of cymenes with low ortho-isomer by selective alkylation of toluene and propene;