Reforming hydrogen preparing device capable of recycling pressure swing absorption desorption gas and technique thereof

Abstract

The invention relates to a reforming hydrogen preparing device capable of recycling pressure swing absorption desorption gas and a technique thereof. The hydrogen preparing device integrates multiple areas of a combustible gas mixture buffer area, a desorption gas recycling and transforming area, a catalytic combustion transition area, a second air & combustible gas reaction area, a reformed raw material mixing area, a natural gas reforming & hydrogen preparing area, a reformed raw gas buffer area, etc. The raw material required by the reforming hydrogen preparation can enter the natural gas reforming & hydrogen preparing device directly at room temperature, the natural gas is reformed to prepare hydrogen and the pressure swing absorption desorption gas is recycled, transformed and utilized in the natural gas reforming & hydrogen preparing device. By this technique, the water pipe management is intensified, and a gas product with the hydrogen density reaching more than 99.9% can be obtained. In addition, hydrogen can be provided for fuel batteries, and the device and the battery system are capable of providing power and heat for users jointly. Both natural gas and alcohol & hydrocarbon hydrogen-containing compounds such as methanol and ethanol can be used as the raw material for the hydrogen preparing technique.

Description

technical field [0001] The invention relates to a reforming hydrogen production device and process capable of recovering and utilizing pressure swing adsorption and desorption gas, especially relates to a method that focuses on improving the integration of natural gas reforming hydrogen production device, strengthening heat management and waterway management, and improving the energy efficiency of the whole system A natural gas reforming hydrogen production device and process that can recycle pressure swing adsorption analysis gas. Background technique [0002] In the 21st century, energy security and environmental protection have become global issues. Solving the strategic issue of sustainable energy development in our country is an important link in realizing the sustainable development of our country's society and economy. In view of my country's energy structure with more coal, less gas and less oil, my country's future energy development strategy requires improving ener...

AI Technical Summary

Problems solved by technology

[0008]Aiming at the residual CO in the hydrogen-rich reformed gas, the traditional method is to use a chemical reaction method, and the final CO concentration can be controlled at 3-30ppm, but this technical route It will bring technical difficulties to the material management and energy management of the entire system, including reactor design, heat exchanger design, and heat management technologies. The competitive reaction with H2 requires high selectivity, and at the same time, the long-term stability of the catalyst (3000-10000h) is also strictly required. In addition, noble metals such as Pt and Pd are more effective as catalyst active components , but there are problems with economic costs

[0009] patent literature (CN101054160A, US6793698 B1, EP1094031 A1) discloses a hydrogen reforming reactor, but the structure is simple, the energy utilization rate is low, and the remaining The gas cannot be fully utilized, and the efficiency of reforming hydrogen production is not high

In addition, there is a difference between the equilibrium combustion reaction rate and the reforming hydrogen production reaction rate, and the reforming hydrogen production reactor cannot realize the stable progress of two different chemical reactions

Images