A thermal high-pressure separation system and its processing method

Abstract

The invention provides a thermal high-pressure separation system and a treatment method thereof. The system comprises a thermal high-pressure separator and a warm high-pressure separator, wherein a filling material section is arranged above the middle section of the thermal high-pressure separator; a washing oil inlet is formed in the upper side of the filling material section; a tank top gas phase outlet of the thermal high-pressure separator is connected with a side line feeding opening of the warm high-pressure separator; a material inlet is formed in the side line of the thermal high-pressure separator; produced oil of the warm high-pressure separator is divided into two parts; the first part backflows to the thermal high-pressure separator through the washing oil inlet; the second part is conveyed to a subsequent device. The system solves the problem of tank top gas phase solid elimination of the thermal high-pressure separator; meanwhile, washing oil from other external sources is not introduced; the problem of too great energy consumption due to temperature rise and pressure rise on the external washing oil can be avoided; meanwhile, the cost of the external source washing oil is saved. The treatment method has the advantages that the operation is simple; the industrial production is easy.

Description

technical field [0001] The invention belongs to the field of energy and chemical industry, and in particular relates to a thermal high-pressure separation system and a processing method thereof. Background technique [0002] The suspended bed hydrogenation reactor processes heavy oil (coal tar, atmospheric residue, vacuum residue, catalytic oil slurry, fuel oil, etc.) ), the thermal high-pressure separator for suspension bed hydrogenation (referred to as thermal high fraction) is used to separate the gas phase and liquid-solid phase of the suspension bed hydrogenation reaction product, so that the unconverted heavy oil and solid catalyst enter the thermal high pressure separator. At the bottom of the separation, the separated gas phase products are cooled from the top of the hot high fraction and then enter the warm and high pressure separator (referred to as warm high fraction) for re-separation. [0003] Since the suspension bed hydrogenation reaction product is a three-p...

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Problems solved by technology

The process of this scheme is cumbersome and complicated, and the liquid R10PXL with its own high solid content is used to flush the gas phase, so it is difficult to achieve a good gas phase desolidification effect

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