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Catalytic Hollow Fiber Membrane for Pure Hydrogen Production

Technology #11358a

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Assoc Prof Sibudjing Kawi
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Ms Yong Yoke Ping (
Manager (65)66011680
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US Patent Pending
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Tech Offer 11358A Catalytic Hollow Fiber Membrane [PDF]

Catalytic Hollow Fiber Membrane for Pure Hydrogen Production


•  Hydrogen production by reforming reactions of hydrocarbons

•   Catalytic decomposition of methane


Patent Pending


•  Licensing

•   Collaboration for further development of technology


•  NUS Ref: 11358A

•   Yong Yoke Ping (tel.: 65-66011680)

•   Email: or

•   Inventors: Assoc Prof Sibudjing Kawi et. al.


·  One-step production of pure hydrogen via reforming reactions by using Catalytic Membrane Reactor (CMR)

·  CMR has a structure of hollow fiber, providing high surface area for chemical reaction and separation 

·  CMR can withstand high temperature and high pressure conditions

·  CMR is highly flexible and durable for industrial applications

Technology Overview

Currently, reforming of hydrocarbons remains the major method for large scale production of hydrogen, which is followed by few additional processes for purification of hydrogen.

This invention relates to a catalytic hollow fiber membrane which can be used as a catalytic membrane reactor for reforming of hydrocarbons to produce pure hydrogen in a single step. The structure of the said membrane is stable at high temperatures and its high surface area per volume for reaction and hydrogen permeation makes it superior to conventional tubular membrane reactors.

The figures below show the performance of the said membrane reactor of this invention in reforming reactions.

Figure 1: Methane conversions as a function of temperature during decomposition of methane with the conventional fixed-bed reactor (Ο) and the said catalytic hollow fiber membrane reactor of this technology at different reaction pressures.

Figure 2: H2 permeation flux and H2 selectivity during decomposition of methane with the said hollow fiber membranes.

Figure 3: H2 recovery during decomposition of methane with the said catalytic hollow fiber membrane reactors.

Technology Features

·  Large scale production of catalytic membrane reactor (CMR) with high performance possible.

·  Pure hydrogen gas can be directly obtained with CMR without the need of further purification, hence reducing the cost for industrial production of pure hydrogen by avoiding the costly purification facilities.

·  CMR with a structure of hollow fiber has a high surface area per volume, hence reducing the operation space and cost as compared to the conventional tubular or sheet structure.

·  Unique structure of hollow fiber membranes not only provides high membrane stability and durability but also prevents mechanical damages; hence it is much more flexible for industrial applications as compared to the conventional membrane reactor.