Advances of zeolite based membrane for hydrogen production via water gas shift reaction

Abstract

Abstract.Hydrogen is considered as a promising energy vector which can be obtained from various renewable sources. However, an efficient hydrogen production technology is still challenging. One technology to produce hydrogen with very high capacity with low cost is through water gas shift (WGS) reaction. Water gas shift reaction is an equilibrium reaction that produces hydrogen from syngas mixture by the introduction of steam. Conventional WGS reaction employs two or more reactors in series with inter-cooling to maximize conversion for a given volume of catalyst. Membrane reactor as new technology can cope several drawbacks of conventional reactor by removing reaction product and the reaction will favour towards product formation. Zeolite has properties namely high temperature, chemical resistant, and low price makes it suitable for membrane reactor applications. Moreover, it has been employed for years as hydrogen selective layer. This review paper is focusing on the development of membrane reactor for efficient water gas shift reaction to produce high purity hydrogen and carbon dioxide. Development of membrane reactor is discussed further related to its modification towards efficient reaction and separation from WGS reaction mixture. Moreover, zeolite framework suitable for WGS membrane reactor will be discussed more deeply.

Examination of the role and challenges of natural catalysts in hydrogen and biohydrogen production

“…To achieve a quick reaction and high conversion, the WGSR is typically carried out in two phases, with the first step taking place at high temperatures (300 • C -400 • C) and the second step at low temperatures (200 • C -300 • C). Additionally, a second processing step is required to separate the hydrogen from CO 2 and any excess reactants present in the products [50]. Research on hydrogen production through the WGSR appears to be limited, as it was only studied in five publications found in Scopus.…”

Advances in Methanol Production and Utilization, with Particular Emphasis toward Hydrogen Generation via Membrane Reactor Technology

“…The concept of MR technology was first introduced in the 1950s, although the utilization of new inorganic materials and the development of high-temperature membrane processes have received much attention in the last three decades. In the field of MR utilization for hydrogen generation, a general subdivision of MR applications can be summarized as reported below:Inorganic membrane reactors [79,81];self-supported and supported Pd-based membrane reactors [80,82];Zeolite membrane reactors [83];biomembrane reactors [84];photocatalytic membrane reactors [85]. …”