Efficient hydrogen separation using proton-conducting ceramic membranes and electrochemical cells

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Title
Efficient hydrogen separation using proton-conducting ceramic membranes and electrochemical cells

CoPED ID
580a2388-5dc8-45be-ad26-d7a405981a62

Status
Active

Funder

Value
No funds listed.

Start Date
Sept. 30, 2022

End Date
Sept. 29, 2026

Description

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To achieve energy-efficient and low-cost hydrogen separation using proton conducting ceramic membranes for hydrogen rich streams generated through reforming of natural gas as well as onsite purification of hydrogen close to the point of end use for dilute hydrogen streams distributed through natural gas pipelines using ceramic proton electrochemical cells (hydrogen pumps). Hydrogen plays a vital role in helping the UK meet its 2050 target of net-zero greenhouse gas emissions through decarbonisation of its energy system including electricity, transport and heating sectors. Most hydrogen used today is produced from fossil fuels (e.g., through steam reforming of natural gas, coal gasification). The product gases consist mainly of H2 and CO2, as well as other impurity gases such as CH4, and CO. Therefore energy-efficient and low-cost hydrogen separation constitutes a crucial process to more toward to hydrogen economy.

Dense ceramic membranes made of mixed protonic-electronic conductors (MPECs) are capable of separating hydrogen from the gas mixtures with 100% selectivity, reduced energy penalty and cost compared to the well-established techniques such as the pressure swing adsorption technique. Ceramic proton conductors can also be used to fabricate electrochemical cells (hydrogen pumps) to obtain high purity hydrogen from dilute hydrogen streams when the existing hydrogen separation techniques become highly inefficient and costly. This is particularly important to facilitate distribution of hydrogen using existing natural gas pipelines. The ceramic proton electrochemical cells could enable extraction of high purity hydrogen from the natural gas blend with 10-20 vol% hydrogen close to the point of end use.

Ming Li SUPER_PER
Luke Thompson STUDENT_PER

Subjects by relevance
  1. Hydrogen
  2. Natural gas
  3. Gases
  4. Energy production (process industry)
  5. Electrolysis
  6. Fuel cells
  7. Gasification
  8. Membrane separation
  9. Fuels
  10. Ceramics
  11. Cells

Extracted key phrases
  1. Efficient hydrogen separation
  2. Cost hydrogen separation
  3. Hydrogen separation technique
  4. Dilute hydrogen stream
  5. Hydrogen rich stream
  6. High purity hydrogen
  7. Ceramic proton electrochemical cell
  8. Hydrogen pump
  9. Hydrogen economy
  10. Vol% hydrogen
  11. Ceramic proton conductor
  12. Natural gas pipeline
  13. Natural gas blend
  14. Dense ceramic membrane
  15. End use

Related Pages

UKRI project entry

UK Project Locations