Bidirectionally-alternating gas purification device and method

Abstract

The invention provides a bidirectionally-alternating gas purification device and method. The device comprises a gas inlet, a gas outlet, a gas pipeline, a left lower stop valve, a left upper stop valve, a right lower stop valve, a right upper stop valve, a downer and a star valve. When the device runs, the left lower stop valve and the right upper stop valve on the gas pipeline are opened, the left upper stop valve and the right lower stop valve are closed, and gas to be purified enters from the left end of the downer, is purified by an adsorbent in the downer and is discharged from the right end of the downer; and when a pressure difference between the left end and the right end of the downer reaches 5 kPa, the right lower stop valve and the left upper stop valve are opened, the left lower stop valve and the right upper stop valve are closed, the gas flows through the downer from right to left and is purified by the adsorbent in the downer, and the saturated adsorbent is discharged under control by the star valve below the downer. The device is exquisite and compact in structural design, simple to operate and maintain, capable of realizing continuous purification of gases such as biogas and flue gas tail gas, and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of gas adsorption and purification, and in particular relates to a two-way rotation gas purification device and method. Background technique [0002] With the development of economy and society, countries around the world generally realize the importance of environmental protection to sustainable development, and have formulated various environmental protection policies, especially in the control and emission of air pollutants, which has brought about the rapid development of gas purification technology. Among them, the use of porous materials to adsorb and purify gases is an important means, for example, the use of metal oxides to purify impurity gases in biogas (H 2 O, H 2 S, etc.); use activated carbon to purify dioxins in waste incinerator exhaust. One of the key factors of gas purification technology is the development of high-efficiency gas purification devices. However, the currently widely used gas...

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the defects of narrow adaptability, low degree of automation and insufficient use of adsorbents in the prior art gas purification device, and provides a two-way rotation gas purification device and method. The device has simple structure design, convenient operation, stable operation, With a high degree of automation, it can effectively realize the continuous and efficient purification of mixed gases such as biogas, coal-fired flue gas, and industrial combustion furnace tail gas.

Images