MD3488F1 - Process for hydrogen electrolytic obtaining - Google Patents

Process for hydrogen electrolytic obtaining

Info

Publication number
MD3488F1
MD3488F1 MDA20070009A MD20070009A MD3488F1 MD 3488 F1 MD3488 F1 MD 3488F1 MD A20070009 A MDA20070009 A MD A20070009A MD 20070009 A MD20070009 A MD 20070009A MD 3488 F1 MD3488 F1 MD 3488F1
Authority
MD
Moldova
Prior art keywords
nickel
sodium
layer
solution
boron
Prior art date
Application number
MDA20070009A
Other languages
Romanian (ro)
Other versions
MD3488G2 (en
Inventor
Olga Covaliova
Victor Covaliov
Gheorghe DUCA
Original Assignee
Universitatea De Stat Din Moldova
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universitatea De Stat Din Moldova filed Critical Universitatea De Stat Din Moldova
Priority to MDA20070009A priority Critical patent/MD3488G2/en
Publication of MD3488F1 publication Critical patent/MD3488F1/en
Publication of MD3488G2 publication Critical patent/MD3488G2/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

Inventia se refera la un procedeu de obtinere electrolitica a hidrogenului, care poate fi utilizat in diverse domenii ale tehnicii, si anume in industria energetica, metalurgica, farmaceutica, electronica. Procedeul se efectueaza prin electroliza unei solutii alcaline in flux de electrolit cu viteza volumetrica de 5…7 l/dm2·h la densitatea curentului catodic de gabarit de 50…100 A/dm2 si aplicarea concomitenta a ultrasunetului in regim precavitational cu intensitatea de 2…3 W/cm2, totodata in calitate de catod se utilizeaza un electrod volumicporos penetrabil din material carbonic fibros, avand coeficientul de porozitate de 0,95…0,97 si grosimea stratului de 5…6 mm, cu suprafata lui poroasa modificata cu un strat de nichel-bor. Pe langa aceasta, se utilizeaza catozi cu suprafata poroasa modificata prin activarea catalitica cu paladiu cudepunerea ulterioara in flux a stratului de nichel-bor dintr-o solutie, ce contine, in g/l:clorura de nichel 25…30etilendiamina 50…60hidroxid de sodiu 35…40borohidrura de sodiu 0,6…1,0acetat de taliu 0,05…0,10,la temperatura de 85…90°C timp de20…30 min, iar in calitate de solutie alcalina seutilizeaza solutie de hidroxid de sodiu sau potasiu de 15…30% in prezenta a 1,5…2,5 g/l de bicromatde potasiu.The invention relates to a process for the electrolytic production of hydrogen, which can be used in various fields of technology, namely in the energy, metallurgical, pharmaceutical and electronic industries. The procedure is performed by electrolysis of an alkaline solution in electrolyte flow with a volumetric speed of 5… 7 l / dm2 · h at the density of the cathodic current of 50… 100 A / dm2 and the concomitant application of ultrasound in precavitational regime with intensity of 2… 3 W / cm2, also as a cathode is used a penetrable volumetric porous electrode made of fibrous carbon material, with a porosity coefficient of 0.95… 0.97 and a layer thickness of 5… 6 mm, with its porous surface modified with a layer of nickel-boron. In addition, cathodes with a porous surface modified by catalytic activation with palladium are used with the subsequent flow of the nickel-boron layer in a solution containing, in g / l: nickel chloride 25… 30 ethylenediamine 50… 60 sodium hydroxide 35… 40 sodium hydrochloride 0,6… 1,0 thallium acetate 0,05… 0,10, at a temperature of 85… 90 ° C for 20… 30 min, and as an alkaline solution a solution of sodium or potassium hydroxide is used of 15… 30% in the presence of 1.5… 2.5 g / l of potassium dichromate.

MDA20070009A 2007-01-17 2007-01-17 Process for hydrogen electrolytic obtaining MD3488G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20070009A MD3488G2 (en) 2007-01-17 2007-01-17 Process for hydrogen electrolytic obtaining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20070009A MD3488G2 (en) 2007-01-17 2007-01-17 Process for hydrogen electrolytic obtaining

Publications (2)

Publication Number Publication Date
MD3488F1 true MD3488F1 (en) 2008-01-31
MD3488G2 MD3488G2 (en) 2008-08-31

Family

ID=39047753

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20070009A MD3488G2 (en) 2007-01-17 2007-01-17 Process for hydrogen electrolytic obtaining

Country Status (1)

Country Link
MD (1) MD3488G2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4207C1 (en) * 2011-10-10 2013-09-30 Государственный Университет Молд0 Process for manufacturing a combined volume-porous flow-through electrode and process for electrolytic production of hydrogen
WO2015152761A1 (en) * 2014-03-31 2015-10-08 Александр Юрьевич КУЗНЕЦОВ Device for electrolytic production of a gaseous mixture of hydrogen and oxygen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD3753G2 (en) * 2007-01-17 2009-06-30 Государственный Университет Молд0 Electrode for hydrogen electrolytic obtaining and process for manufacturing thereof
MD244Z (en) * 2009-09-04 2011-02-28 Государственный Университет Молд0 Electrode for electrolytic production of hydrogen and process for manufacturing thereof
MD4087C1 (en) * 2010-02-10 2011-08-31 Государственный Университет Молд0 Process for chemical-catalytic deposition of metal coatings
MD375Z (en) * 2010-05-24 2011-12-31 Государственный Университет Молд0 Process for electrolytic production of hydrogen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4207C1 (en) * 2011-10-10 2013-09-30 Государственный Университет Молд0 Process for manufacturing a combined volume-porous flow-through electrode and process for electrolytic production of hydrogen
WO2015152761A1 (en) * 2014-03-31 2015-10-08 Александр Юрьевич КУЗНЕЦОВ Device for electrolytic production of a gaseous mixture of hydrogen and oxygen
MD1026Y (en) * 2014-03-31 2016-04-30 Александр Юрьевич Кузнецов Device for electrolytic production of a gaseous mixture of hydrogen and oxygen

Also Published As

Publication number Publication date
MD3488G2 (en) 2008-08-31

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees