Second use or recycling of hydrogen waste gas from the semiconductor industry - Economic analysis and technical demonstration of possible pathways

Rochlitz, L.; Steinberger, Michael; Oechsner, R.; Weber, A.; Schmitz, Sven; Schillinger, K.; Wolff, Michael; Bayler, A.

doi:10.1016/j.ijhydene.2019.05.009

Cited by 16 publications

(11 citation statements)

References 7 publications

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“…2f). And based on the fact that the EHC process is isothermal in nature and through the increased profitability of hydrogen produced from EHCs (current hydrogen prices are around 11€ kg −1 ) due to the price reduction in membrane-electrode-assemblies (MEA) [75], EHCs are expected to replace conventional mechanical compressors. Like PEMFCs, EHCs also possess other attractive advantages, including the potential for higher efficiency, lower or zero emissions, increased simplicity and reduced costs.…”

Section: Electrochemical Hydrogen Compressormentioning

confidence: 99%

“…And although the theoretical voltage for hydrogen compression is only related to pressure difference and operating temperature based on the Nernst equation, the voltage of practical EHCs can be affected by several factors, including catalyst activity and PEM ion conductivity in which for voltage loss caused by catalysts and membranes, they can be classified into three causes, including activation overpotential-related to electrocatalysts, ohmic overpotential related to proton transport through PEMs and mass-transfer overpotential. Rochilz et al [75] were also able to develop a zero-dimension and stable EHC model to calculate overall voltages by considering ohmic overpotential and activation overpotential and reported that different overpotentials can be separated based on anodes and cathodes. As for current density j applied to EHC cells, Eq.…”

Section: Principle Of Ehcsmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Compression Technologies for High-Pressure Hydrogen: Current Status, Challenges and Perspective

Zou

Han

Yan

et al. 2020

Electrochem. Energ. Rev.

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Hydrogen is an ideal energy carrier in future applications due to clean byproducts and high efficiency. However, many challenges remain in the application of hydrogen, including hydrogen production, delivery, storage and conversion. In terms of hydrogen storage, two compression modes (mechanical and non-mechanical compressors) are generally used to increase volume density in which mechanical compressors with several classifications including reciprocating piston compressors, hydrogen diaphragm compressors and ionic liquid compressors produce significant noise and vibration and are expensive and inefficient. Alternatively, non-mechanical compressors are faced with issues involving large-volume requirements, slow reaction kinetics and the need for special thermal control systems, all of which limit large-scale development. As a result, modular, safe, inexpensive and efficient methods for hydrogen storage are urgently needed. And because electrochemical hydrogen compressors (EHCs) are modular, highly efficient and possess hydrogen purification functions with no moving parts, they are becoming increasingly prominent. Based on all of this and for the first time, this review will provide an overview of various hydrogen compression technologies and discuss corresponding structures, principles, advantages and limitations. This review will also comprehensively present the recent progress and existing issues of EHCs and future hydrogen compression techniques as well as corresponding containment membranes, catalysts, gas diffusion layers and flow fields. Furthermore, engineering perspectives are discussed to further enhance the performance of EHCs in terms of the thermal management, water management and the testing protocol of EHC stacks. Overall, the deeper understanding of potential relationships between performance and component design in EHCs as presented in this review can guide the future development of anticipated EHCs.

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Section: Electrochemical Hydrogen Compressormentioning

confidence: 99%

Section: Principle Of Ehcsmentioning

confidence: 99%

Electrochemical Compression Technologies for High-Pressure Hydrogen: Current Status, Challenges and Perspective

Zou

Han

Yan

et al. 2020

Electrochem. Energ. Rev.

View full text Add to dashboard Cite

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“…Hydrogen, endowed with high mass-energy density and strong reductivity, is widely used in energy [1], industry [2,3], and medical treatment [4,5]. It commonly served as a carrier gas in the photovoltaics and semiconductor industry [6]. Typically, hydrogen has the function of antioxidation, anti-inflammation, and antiapoptosis [7], making hydrogen molecular medicine highly potential for health care [8].…”

Section: Introductionmentioning

confidence: 99%

Electrolytic water technology based on transformable and amorphous liquid metal electrodes

Xing

Liu

2022

Applied Research

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Hydrogen has important values in industrial manufacture, medical health care, and diverse energy application areas. Among the many possible approaches, convenient and safe hydrogen production from water electrolysis has always been a preferred in situ hydrogen supply technology. So far, many of the electrodes thus involved are based on rigid metals or conductive items which may encounter inconvenience or insufficiency sometimes. To achieve targeted release of hydrogen, appropriate administration of suitable flexible hydrogen evolution electrodes is the key. In recent years, gallium-based liquid metals have emerged in the field of flexible and biological electrodes. Starting from this point, liquid metal is proposed here as a transformable amorphous electrode for hydrogen evolution in electrolytic water which may help mold new conceptual electrolysis and energy utilization ways. The electrochemical Applied Research.

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“…Hydrogen is purified and compressed for storage or distribution up to a pressure of 200 bar by means of a simple one-step process. Possible sources of hydrogen are industrial waste gas streams and biogas production [5,6] or the recycling of hydrogen waste gas from the semiconductor industry [7]. The operating principle is a combination of a fuel cell anode and an electrolyzer cathode [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

An Engineering Toolbox for the Evaluation of Metallic Flow Field Plates

et al. 2019

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Metallic flow field plates, also called bipolar plates, are an important component of fuel cell stacks, electrolyzers, hydrogen purification and compression stacks. The manufacturing of these plates by means of stamping or hydroforming is highly suitable for mass production. In this work, a toolbox is created that is suitable for a screening process of different flow field design variants. For this purpose, the geometry and computational mesh are generated in an automated manner. Basic building blocks are combined using the open source software SALOME, and these allow for the construction of a large variant of serpentine-like flow field structures. These geometric variants are evaluated through computational fluid dynamics (CFD) simulations with the open source software OpenFOAM. The overall procedure allows for the screening of more than 100 variants within one week using a standard desktop computer. The performance of the flow fields is evaluated on the basis of two parameters: the overall pressure difference across the plate and the relative difference of the hydrogen concentration at the outlet of the channels. The results of such a screening first provide information about optimum channel geometry and the best choice of the general flow field layout. Such results are important at the beginning of the design process, as the channel geometry has an influence on the selection of the metal for deep drawing or hydroforming processes.

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Second use or recycling of hydrogen waste gas from the semiconductor industry - Economic analysis and technical demonstration of possible pathways

Cited by 16 publications

References 7 publications

Electrochemical Compression Technologies for High-Pressure Hydrogen: Current Status, Challenges and Perspective

Electrochemical Compression Technologies for High-Pressure Hydrogen: Current Status, Challenges and Perspective

Electrolytic water technology based on transformable and amorphous liquid metal electrodes

An Engineering Toolbox for the Evaluation of Metallic Flow Field Plates

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