Coupling catalytic reforming-method and device for film separation reaction

Abstract

The invention discloses a method of preparing high-purity hydrogen with a coupled catalyst reformation-film separation reactor device and a device thereof. The method includes the following steps: a. substance with carbon-hydrogen and water vapor are heated to 300 DEG C to 1500 DEG C; the water vapor is fed into a reactor after the water-carbon ratio in the reactor is 1.0 to 10.0 through regulating the flow of the water vapor; b. the mixed gas and the reformed catalyst particles in the reactor fully contact, react and produce mixed gas with hydrogen; c. the mixed gas goes through high-selective hydrogen permeable film separation components arranged in the reactor; the hydrogen is timely separated in the reaction, high-purity hydrogen is collected. With the invention, the high-selective hydrogen permeable film separation components are directly arranged in the reactor, so that the hydrogen produced by catalyst reformation is timely separated from the mixed gas produced by the reaction of carbon-hydrogen raw material and the vapor, which can prevent methanation and other side effects and improve the hydrogen making efficiency; the reactor system coupled with film separation components has simple structure.

Description

technical field [0001] The invention relates to the field of hydrogen production, in particular to a method and device for coupling catalytic reforming-membrane separation reactions. Background technique [0002] As an efficient and clean secondary energy source, hydrogen has attracted more and more attention, and has been widely used in many industries. Expanding from the aerospace field in the past to today's civilian industry, especially the use of fuel cells, has brought good economic prospects and environmental protection advantages to the efficient and clean utilization of hydrogen energy, and has also promoted people's widespread attention to hydrogen energy; At present, the use of natural gas water coupling catalytic reforming-membrane separation reaction is still the most important way of large-scale hydrogen production. People have found through research that under certain catalyst and reaction conditions, various raw materials such as natural gas, methane, propane...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing technology, it is impossible to directly realize reforming hydrogen production and hydrogen separation on one piece of equipment. Since hydrogen cannot be collected quickly, it is very easy to cause side reactions such as methanation, and the efficiency of hydrogen production is low.

Images