A heavy oil four-component automatic separation device

By designing a four-component automatic separation device for heavy oil, the filter plate and medium-pressure chromatography column are used to achieve automatic online separation and rapid separation, which solves the problems of complicated steps, large solvent usage and poor separation effect in the existing technology, and achieves efficient and precise separation of four-components of heavy oil.

CN112730700BActive Publication Date: 2025-03-25PETROCHINA CO LTD +1
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Patent Information

Application Number
CN202010137663.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-10-28
Filing Date
2020-03-02
Publication Date
2025-03-25
Estimated Expiration
2040-03-02

AI Technical Summary

Technical Problem

The existing four-component separation device for heavy oil is complicated, the operator has a high labor intensity, long analysis time, and there are problems such as large solvent usage, poor separation effect and poor repeatability.

Method used

A four-component automatic separation device for heavy oil is designed, using filter plates and flow path switching valves to automatically separate asphaltene online, using medium-pressure chromatography columns and liquid shunt devices to achieve fast and accurate four-component separation, and reducing weighing errors through automatic receiving devices.

Benefits of technology

It realizes automatic online separation and reception of asphaltene, saturated parts, aromatic parts and colloids, reduces manual operation steps, greatly saves time and solvent usage, and improves the precision and repeatability of separation and measurement.

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Abstract

The present invention discloses an automatic separation device for heavy oil with four components, which includes a solvent storage tank, a heavy oil four-component separation unit and a receiving device; the heavy oil four-component separation unit includes a filter disc, one end of which is connected to the solvent storage tank, and the other end is connected to the inlet of the pre-column flow path switching valve; a chromatographic column, the inlet of which is connected to the outlet of the pre-column flow path switching valve, and the outlet is connected to the inlet of the post-column flow path switching valve; the receiving device is connected to the outlet of the post-column flow path switching valve. The automatic separation device for heavy oil with four components of the present invention can separate asphaltene online through the filter disc, realize parallel diversion and preheating of multiple solvents, and automatically receive multiple eluents and evaporate the solvents quickly, thereby realizing automatic and rapid separation of the four components of heavy oil, saving time, reducing manual operation errors, and improving the precision of separation and measurement.
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