Methanol reforming hydrogen production exhaust gas exhausting device

Abstract

The invention discloses a methanol reforming hydrogen production exhaust gas exhausting device. The device comprises an air supplying device, a reaction box, a hydrogen production reforming device anda quantitative injecting device, wherein an air supplying end of the air supplying device communicates with one end of the reaction box, and the other end of the reaction box is connected with a heatsupplying end of the hydrogen production reforming device; an exhaust gas outlet pipe is arranged at the end, far away from the reaction box, of the hydrogen production reforming device; an oxygen sensor is connected to the end, far away from the reaction box, of the hydrogen production reforming device, and a detecting head end of an oxygen sensor penetrates an inner chamber of the reforming device, is close to the exhaust gas outlet pipe and is used for detecting the oxygen concentration of exhaust gas exhausted from the exhaust gas outlet pipe; the quantitative injecting device is connected to a position, close to the air supplying device, at the side end of the reaction box; and the reaction box is filled with a catalyzing material. According to the device, the oxygen sensor is additionally arranged in a methanol reforming hydrogen production exhaust gas exhausting pipe and used for monitoring the oxygen content in the exhaust gas in real time, so that the problem of excessive orinsufficient air volume can be completely solved, and the pollution of carbon monoxide and hydrogen in exhaust gas to the environment is avoided.

Description

Technical field [0001] The invention relates to the technical field of methanol reforming hydrogen production, in particular to a methanol reforming hydrogen production tail gas discharge device. Background technique [0002] The process of methanol reforming hydrogen production is divided into two stages: stack and reforming heating stage and power generation stage. The heat source in the heating stage is mainly from the quantitative atomization of methanol water mixed with air blown in by the urea nozzle, and it is oxidized by flameless catalyst. The reaction is obtained. In this process, the emissions are mainly carbon dioxide and water vapor. In the past, in order to ensure that methanol water and oxygen fully react, it was only achieved by increasing the air supply of the air supply device. [0003] This method is feasible on the surface, but in fact there are many disadvantages. First of all, due to the emphasis on full combustion, the exhaust gas meets the standard, the amou...

AI Technical Summary

Problems solved by technology

[0003] This method is feasible on the surface, but in fact there are many disadvantages. First, due to the emphasis on full combustion and exhaust gas compliance, the injection of air will exceed the reaction by a lot, resulting in serious heat loss, and the temperature rise of the reforming chamber and stack is relatively slow. Extend the waiting time for power generation; secondly, in different environments, due to the change of conditions, the control program cannot be fully adapted, resulting in short-term or long-term lack of oxygen, insufficient methanol reaction, and thus the tail gas contains carbon monoxide and methanol vapor, causing environmental problems

Images