Filtering system for coking demulsifier

Abstract

The invention discloses a filtering system for a coking demulsifier. The filtering system comprises a reaction kettle, wherein a mixing filter is arranged inside the reaction kettle, the bottom portion of the mixing filter is provided with a liquid inlet communicated to the outside of the reaction kettle, a filtration baffle and filler frames are sequentially arranged above the liquid inlet insidethe mixing filter, the top portion of the mixing filter is provided with a group of micro-pores, the bottom portion of the reaction kettle is provided with a material outlet, and the top portion is provided with a gas outlet. Compared to the filtering system in the traditional technology, the filtering system of the present invention has the following advantages that the large particle substanceis filtered by the baffle, and the medium particles are further adsorbed by the filler, such that the requirement on the particle size of the demulsifier can be met; and through the design of the micro-pores, the particle size of the particles in the demulsifier is further limited.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a filter system for coking demulsifiers. Background technique [0002] The delayed coking unit is an important means of secondary processing of crude oil. The heavy oil is thermally cracked at a temperature of about 500°C in the coking tower to generate light oil and coke, and the light oil is separated into components by a fractionating tower. In recent years, due to the deterioration of processed crude oil, the sulfur content and acid content in crude oil have gradually increased. The medium in the oil-water separation tank at the top of the fractionation tower contains a large amount of decomposition to produce mercaptans, phenols, naphthenic acids and other substances. These substances play an emulsifying role. Due to the action of the agent, it is very easy to cause emulsification in the oil-water separation tank, and the nature of the emulsion is stable and diff...

AI Technical Summary

Problems solved by technology

In recent years, due to the inferior quality of processed crude oil, the sulfur content and acid content in crude oil have gradually increased. The medium in the oil-water separation tank at the top of the fractionation tower contains a large amount of substances such as mercaptans, phenols, and naphthenic acids that are decomposed to form emulsification. The effect of the agent can easily cause emulsification in the oil-water separation tank, and the nature of the emulsion is stable and difficult to eliminate

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