PROCESS FOR PREPARING OIL-CONTAINING GRANULAR COAL

摘要

A process comprising the steps of adding to a slurry of coal particles in water a liquid oil mixture of a low-boiling hydrocarbon oil and a high-boiling hydrocarbon oil soluble in the low-boiling hydrocarbon oil and in the form of a solid or paste at room temperature, and a surfactant granulating the coal particles in the water with use of the oil mixture as a binder, separating the resulting coal granules containing the oil mixture from the water, and heating the coal granules containing the oil mixture to evaporate the low-boiling hydrocarbon oil. This process gives an oil-containing granular coal composed of the coal particles and the high-boiling hydrocarbon oil in the form of a solid or paste at room temperature. The low-boiling oil, together with a small amount of water, is condensed, and the low-boiling oil recovered and reused for agglomerating coal particles.