I. Overview

The use of pressure swing adsorption to recover hydrogen from refinery dry gas and synthetic ammonia purge gas has the following advantages:

1. The product purity is high and can be adjusted flexibly, and the product purity can be adjusted within the range of 99%−99.999%;

2. The process flow is simple, without complicated pretreatment procedures;

3. The device is controlled by a computer with a high degree of automation;

4. The device has strong adjustment ability and large operating flexibility;

5. Small investment, low energy consumption, simple maintenance, less maintenance time, and high operating rate;

6. The adsorbent has a long service life, generally it can be used for more than ten years;

7. Good environmental benefits, almost no "three wastes" are produced.

2. Technical parameters:

1. Hydrogen production scale: 100−150000Nm3/h

2, product purity: 99-99.9995%

3. Operational flexibility: 30−110%

4. Annual operating time: 8000 hours

3. Scope of application:

Ammonia decomposition gas, ammonia tank purge gas, methanol tail gas, catalytic cracking dry gas and other hydrogen-containing sources.