Method and apparatus for producing hydrogen peroxide

An apparatus for producing hydrogen peroxide by electrical discharge from material gas containing hydrogen and oxygen, comprising:

• an electrical discharge chamber provided with material gas containing hydrogen and oxygen for producing hydrogen peroxide from said material gas by electrical discharge, wherein said electrical discharge chamber includes a pair of electrodes for inducing electrical discharge, dielectric consisting essentially of quartz provided respectively on opposing surfaces of said pair of electrodes, thermal conductive resin covering said pair of electrodes, and a metallic cooling member provided on said thermal conductive resin for cooling said pair of electrodes;
• a separator for separating hydrogen peroxide and water from gas exhausted from said electrical discharge chamber;.
• recycling means for returning gas exhausted from said separator to said electrical discharge chamber;
• hydrogen supplying means for supplying hydrogen to the recycled gas recycled from said separator to said electrical discharge chamber by said recycling means;
• oxygen supplying means for supplying oxygen to the recycled gas recycled from said separator to said electrical discharge chamber by said recycling means;
• detecting means for at least measuring a quantity of oxygen consumed by the production of hydrogen peroxide;
• and
• control means for controlling a quantity of hydrogen supply from said hydrogen supplying means and a quantity of oxygen supply from said oxygen supplying means in accordance with information from said detecting means.