KETEP 세계에너지시장정보

Table of contents
Foreword 02
List of tables and figures...................................................................................................................................................................................................................................................................................................05
List of abbreviations ...............................................................................................................................................................................................................................................................................................................07
List of countries............................................................................................................................................................................................................................................................................................................................08
Executive summary 09
Key findings 10
1. Introduction 19
1.1 Why hydrogen? ..........................................................................................................................................................................................................................................................................................................19
1.2 The need to ramp up supply and demand for low-emission hydrogen ......................................................................................................................................20
1.3 Why this report? .......................................................................................................................................................................................................................................................................................................24
1.4 Structure of the report ....................................................................................................................................................................................................................................................................................26
2. Hydrogen patents: an overview 27
2.1 Geography of hydrogen innovation ..............................................................................................................................................................................................................................................27
2.2 General patenting trends in established and emerging technologies .........................................................................................................................................31
3. Hydrogen production 39
3.1 Main patenting trends in hydrogen production ..........................................................................................................................................................................................................39
3.2 Technologies for low-emission hydrogen production .........................................................................................................................................................................................41
3.3 Recent developments in electrolysers .......................................................................................................................................................................................................................................45
4. Hydrogen storage, distribution and transformation 50
4.1 Main patenting trends in hydrogen storage, distribution and transformation ..............................................................................................................51
4.2 Recent developments in established storage and distribution technologies ....................................................................................................................52
4.3 Recent developments in storage, distribution and transformation: the case of hydrogen-based fuels ......................................55
5. End-use applications 59
5.1 Recent developments in established applications ....................................................................................................................................................................................................59
5.2 Recent developments in applications motivated by climate ....................................................................................................................................................................62
5.3 Recent developments in transport technologies ......................................................................................................................................................................................................64
References 69