There are different methods for producing Hydrogen. Here I present the validated one in use by the industry

1. 16/12/2020
How Hydrogen is produced (validated methods)
• Steam Reforming – Dampfreformierung – Reforma com Vapor
CH4 + H2O  CO + 3H2
• Partial Oxidation - Partielle Oxidation – Oxidaçao Parcial
CnHm + n/2 O2  nCO + m/2 H2
• Autothermical Reform - Autotherme Reformierung – Reforma autotérmica
4CH4 + 2H2O + O2  4CO + 10H2
• Gas Preparation – Gasaufarbeitung – Preparacao do Gas
• Water Electrolyse - Elektrolyse von Wasser – Eletrolise da Agua
H2O + 2e-  H2 + ½ O2
• Biomass – Biomasse – Biomassa
C6H12O6 + O2 + H2O → 6CO + 7H2 +1/2 O2
• Kvaerner Process - Kvaerner-Verfahren – Processo de Kvaerner
CnHm  nC + m/2 H2
• Thermochemical Process - Thermochemische Verfahren – Processo
Termoquimico
• Photochemical Production - Photochemische Herstellung – Producao Fotoquimica
• Photobiologic Production- Photobiologische Herstellung – Producao Fotobiologica
• H2 Production by Alternative Energy sources - Wasserstofferzeugung auf Basis
alternative Energiequellen – Producao de H2 por fontes de energia alternativa