Novel efficient amine liquid decoking powder purification device

Abstract

The invention discloses a novel efficient amine liquid decoking powder purification device which comprises an amine liquid tank B, a machine pump, a filter press, an amine liquid tank A, a thermo-stable salt adsorber, a 5mu m filter, an activated carbon filter, a 10mu m filter, an amine liquid inlet, a valve A and a valve B, wherein the 10mu m filter and the 5mu m filter are respectively connected in parallel at the left end and the right end of the activated carbon filter, and then an efficient suit filtering separation device is formed; the amine liquid tank A, the machine pump, the valve B, the suit filtering separation device and the thermo-stable salt adsorber form a circulation closed loop; and multiple times of efficient filtration and purification can be implemented according to demands. Compared with the prior art, the novel efficient amine liquid decoking powder purification device has the characteristics of being convenient to mount, simple to operate, stable to operate and capable of effectively purifying coking powder in an amine liquid, improving product quality, reducing corrosion and replacement of devices and lowering the cost.

Description

[0001] 1. Technical field [0002] The invention relates to the field of petrochemical industry, in particular to a novel high-efficiency amine liquid decoking powder purification device. [0003] 2. Background technology [0004] In the petroleum refining process, the coke powder in the coking dry gas and liquefied gas is seriously carried. Part of the coke powder enters the amine liquid system of the desulfurization unit along with the dry gas and liquefied gas. Foaming affects the desulfurization effect of dry gas and liquefied petroleum gas, and the deposition of coke powder on the tray will reduce the efficiency of the desulfurization tower tray, further reducing the desulfurization effect. The current device is equipped with filter bags, pleated filters, etc., but the filtering effect of amine liquid with high coke powder content is not obvious, or the bag or filter element needs to be replaced frequently, which is cumbersome, labor-intensive, and costly. At present, the...

AI Technical Summary

Problems solved by technology

[0004] In the petroleum refining process, the coke powder in the coking dry gas and liquefied gas is seriously carried. Part of the coke powder enters the amine liquid system of the desulfurization unit along with the dry gas and liquefied gas. Foaming affects the desulfurization effect of dry gas and liquefied petroleum gas, and the deposition of coke powder on the tray will reduce the efficiency of the desulfurization tower tray, further reducing the desulfurization effect

The current device is equipped with filter bags, pleated filters, etc., but the filtering effect of amine liquid with high coke powder content is not obvious, or the bag or filter element needs to be replaced frequently, which is cumbersome, labor-intensive, and costly

At present, the online filter backwashing method is adopted in China, the loss of amine liquid is large, and the removal rate of coke powder is low, which increases the production cost.

Images