Wax oil treatment device and working method

Abstract

The invention discloses a wax oil treatment device and working method. The device includes a wax oil storage tank, a liquid supply pump, a tubular filter, a nitrogen gas storage tank and a waste oil storage tank. The method includes filling, filtering, pressurizing and deslagging. On a principle of not changing the wax oil composition and aiming at defects and weaknesses existing in a conventional neutralized juice clarification treatment device, improvement and reinforcement are carried out; and through optimization of a treatment process of the conventional device, the whole wax oil treatment device achieves on-line cleaning, continuous filtration and totally-enclosed operation, has no need of external connection with a cleaning liquid, and has no wastewater discharge.

Description

technical field [0001] The invention relates to a wax oil treatment device and a working method in the shale oil processing process. Background technique [0002] Shale oil is an important raw material for artificial petroleum and belongs to petroleum substitute products. As a solid fossil fuel, oil shale is a brown, viscous liquid product with a special pungent smell produced by thermal decomposition of organic matter during dry distillation. The processed shale oil is rich in alkanes and alkenes, which can be used to produce high value-added chemicals. At the same time, the sulfides and nitrides contained in shale oil can also be widely used in agriculture, medicine, chemical industry and other industries. Shale oil contains some paraffin. At present, to extract paraffin from shale oil, the shale raw oil is usually distilled under atmospheric pressure and vacuum to obtain waxy distillate oil with a boiling range of 340-420°C. The wax oil is stored in the crystallizer. Af...

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Problems solved by technology

Shale oil contains some paraffin. At present, to extract paraffin from shale oil, the shale raw oil is usually distilled under atmospheric pressure and vacuum to obtain waxy distillate oil with a boiling range of 340-420°C. The wax oil is stored in the crystallizer. After cooling and precipitation, the asphaltenes and colloids in the wax oil are taken out through the plate and frame filter, but the plate and frame filter operates intermittently, with low processing efficiency, poor operating environment, and high labor intensity for cleaning and maintenance

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