China Drying Oil Shale (also known as kerogen shale) is a kind of high-ash sedimentary rock with combustible organic matter. The main difference between coal and coal is that the ash content is more than 40%, and the main difference with carbonaceous shale is that the oil content is more than 3.5%. Shale oil can be obtained by low-temperature dry distillation of oil shale. Shale oil is similar to crude oil and can be made into gasoline, diesel oil or fuel oil. The appearance of oil shale is mostly brown mudstone, mainly including oil jelly, moisture and minerals.
According to the oil composition of oil shale, the oil shale water content is between 4% and 25%, which is related to the microporous structure between the mineral particles. During the heat processing process, more heat is consumed and it is easy to disintegrate when dried. . Therefore, the core technical requirement for oil shale drying is that the drying process prevents the oil shale from breaking up. The core technology to prevent breakage in the oil shale drying process is the control of drying time and temperature.
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