LLC «Innovation company MEVODENA»
Bonch-Bryuevich Saint-Petersburg State University of Telecommunications

Wednesday, 31.05.2023


     The LLC "Innovation company MEVODENA” offers the services in creation of membrane systems on the base of composite metal membranes of group 5 metals for:

  • Hydrogen separation from gas mixture
     Hydrogen separation/extraction from the gas mixtures containing hydrocarbons, and receiving of a large mount of pure hydrogen is very actually for various problems of hydrogen power, in particular for creation of a wide range of power supply on the base of fuel cells from power supplies for portable computers and mobile means of communication to ship engines and generating stations, as well as for creation of new technologies in microelectronics, the chemical industry, metallurgy, production of drugs, etc.
Replacement of the presently used filters made on the base of a palladium and its alloys with cheaper and effective composite membranes on the base of 5 group metals will considerably reduce cost of receiving pure hydrogen and will increase reliability of operation of the corresponding devices.

  • Pumping of hydrogen from vacuum systems
     Superpermeable membranes are the perfect means for pumping of hydrogen and its isotopes from vacuum systems, in particular from vacuum systems, in which the continuous admittance of large amount of hydrogen is carried out, for example, in thermonuclear reactors. Pumps on the base of superpermeable membranes possess a number of advantages:
(a) record speed of pumping on a unit of weight and volume;
(b) the unlimited life time which is not depend on amount of pumped hydrogen;
(c) simplicity of a design: for example, the membrane can be a part of a wall of vacuum system through which hydrogen is pumped out directly in the atmosphere;
(d) possibility to "automatically" compress pumped-out hydrogen and its isotopes and to return them back in working system (that is to carry out a recuperation of working gas).
     Various membrane systems for hydrogen pumping, based on superpermeable membranes and pumping out hydrogen with speed of 2000 l/s, are developed and successfully tested by team of "LLC MEVODENA”.

  • Registration of hydrogen particles (for experimental devices in physics and chemistry, space researches, etc.)
     Superpermeable membranes are capable, for example, to absorb and to pass in the measuring chamber practically each atom of hydrogen falling on a surface of a membrane while no other gases, including molecular hydrogen, can get through it. Thus, registration of atomic hydrogen with record sensitivity even on a high background of other gases, including molecular hydrogen (for example, pressure of molecular hydrogen can be higher in 107 times, than pressure of atomic hydrogen) is possible.