Direct dimethyl ether fuel cell system

Abstract

The invention provides one direct diethyl ether fuel battery system, which comprises direct diethyl ether fuel battery, materials supply device connected with fuel battery entrance hole and diethyl ether materials supply device. The device is characterized by the following: the supply device comprises the steel bottle and pressure tar and adds recycle use system composed of gas and liquid isolation tar, purification tar, cooling tar and constant pump; the steel bottle connects pressure tar through control valve and the pressure tar is set with constant flow pump, flow meter and control valve.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a direct dimethyl ether fuel cell system capable of recovering and reusing dimethyl ether in anode tail gas. Background technique [0002] The research on direct dimethyl ether fuel cells is mainly concentrated in some universities and research institutions in the United States, Japan and other countries. Domestic reports in this area only focus on the research on the basic electrochemistry of dimethyl ether, mainly including, Studies of electrochemical oxidation and electrode adsorption behavior. Foreign researchers mostly use the direct methanol fuel cell test system to conduct research on direct dimethyl ether fuel cells. The gas phase feeding method is used. DME needs to be humidified by a humidification system, and the anode tail gas is directly discharged into the air. The disadvantages are: (1) Since the anode tail gas contains a large amount of unreacted dimethyl ether, direct emptying wil...

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Problems solved by technology

The disadvantages are: (1) Since the anode tail gas contains a large amount of unreacted dimethyl ether, direct emptying will cause waste of dimethyl ether fuel; (2) dimethyl ether has a low flash point (-5.5°C), and the explosion limit 3.4% to 18%, relative density 1.617 (air is 1) is larger than air, it is a flammable, explosive gas that is not easy to diffuse and dilute automatically in the air, so the direct venting of the above exhaust gas will cause great safety Hidden dangers; (3) The use of dimethyl ether humidification system increases the structural complexity of the system

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