The recent areas of applicability of palladium based membrane technologies for hydrogen production from methane and natural gas: A review

Jokar, Seyyed Mohammad; Farokhnia, A.; Tavakolian, M.; Pejman, M.; Parvasi, Payam; Javanmardi, Jafar; Zare, F.; Gonçalves, M. Clara; Basile, Angelo

doi:10.1016/j.ijhydene.2022.05.296

Cited by 62 publications

(21 citation statements)

References 170 publications

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“…Therefore, different membrane systems are developed for hydrogen purification. The effective high-temperature membranes are made from palladium-based or other highly permeable metallic thin layers deposited on porous ceramic supports [ 3 , 4 , 5 ]. Ceramic supports should have high resistance to hydrogen embrittlement, suitable gas permeability and high mechanical strength [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application

et al. 2023

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In the present work, porous composites were fabricated from pure Al2O3 and mixed Ti3AlC2/Al2O3 powder by slip casting and sintering. The effect of sintering temperature and different composition ratio on microstructure, phase composition, porosity and gas permeation flux of the fabricated materials was investigated. The microstructure and phase composition of the samples were analyzed by scanning electron microscopy and X-ray diffraction, respectively. The gas permeation experiments were performed using pure hydrogen at 0.1–0.9 MPa pressure. It is shown that a decrease in sintering temperature from 1500 to 1350 °C results in an increase in hydrogen permeation flux of the alumina from 5 to 25 mol/(m2 × s), which is due to higher pore size and overall porosity of the samples. Sintering of Ti3AlC2/Al2O3 powder mixtures leads to the formation of Al2O3, Al2TiO5 and TiO2 phases as a result of oxidation of the Ti3AlC2 phase, resulting in an increased pore size in the composites compared with pure alumina. The open porosity of composites increases from 3.4 to 40% with an increasing Ti3AlC2/Al2O3 ratio from 1/10 to 1/2, respectively. The composites with the highest porosity (40%) had a maximum permeation flux of 200 mol/(m2 × s). The changes in the bending strength of the alumina and composite samples, depending on the microstructure and porosity, were also discussed. The investigated composites are considered promising materials for hydrogen separation membrane supports.

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Section: Introductionmentioning

confidence: 99%

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application

et al. 2023

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“…Commonly, dry, steam, and mixed reforming routes in Pd-Ag membrane reactors are assisted in the industry for the conversion of hydrocarbons to ultra-pure hydrogen. 5,6 The process control and operating conditions for membrane reactors could be similar to the tubular reactor. However, there are some challenges that could be considered for using the tubular membrane reactor:…”

Section: Introductionmentioning

confidence: 99%

“…The membrane technology has been attracted attention for CO 2 reduction and carbon capturing. 6,8 By applying Pd-Ag membranes, it is possible to consume CO 2 and produce pure hydrogen simultaneously. Recently, some research dedicated to simulate CO 2 conversion in Pd-Ag membrane reformers.…”

Section: Introductionmentioning

confidence: 99%

“…Pd–Ag alloys are widely used as hydrogen purifications membranes. Commonly, dry, steam, and mixed reforming routes in Pd‐Ag membrane reactors are assisted in the industry for the conversion of hydrocarbons to ultra‐pure hydrogen 5,6 . The process control and operating conditions for membrane reactors could be similar to the tubular reactor.…”

Section: Introductionmentioning

confidence: 99%

“…The membrane technology has been attracted attention for CO 2 reduction and carbon capturing 6,8 . By applying Pd‐Ag membranes, it is possible to consume CO 2 and produce pure hydrogen simultaneously.…”

Section: Introductionmentioning

confidence: 99%

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A novel concept for pure hydrogen production and a massive reduction in CO₂ emissions from the formaldehyde absorption process

Parvasi

Jokar

Basile

2022

Asia-Pacific J Chem Eng

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The Formox process is a well‐known process for formalin generation, which uses iron‐molybdenum oxide as a catalyst. Typically, the off‐gas from the formaldehyde absorption column in Formox process is burnt in the emission control system (ECS), resulting to produce a huge amount of CO2. This work proposes a modified process to remove formaldehyde and volatile organic compounds from the stack of formaldehyde absorbing tower. Steam reforming reactions in a novel fixed‐bed tubular membrane reactor is used instead of combustion reactions in a conventional fixed‐bed reactor in ECS. The process was modeled to evaluate the role of membrane reactor for CO2 mitigation in Formox process. The collected data from a domestic formalin plant were used for modeling purposes. The model was validated against experimental measurements obtained from other works. A good consistency was observed. The improvement in CO2 emission mitigation, as well as H2 production, was achieved by applying the Pd‐Ag membrane reactor filled with copper‐based catalyst. The CO2 emission rate considerably changed from 6,700 to 575 kg/day. Furthermore, by using the proposed reactor, the emission of formaldehyde and methanol vapors throughout the ECS plant were eliminated. The essential parameters such as reactor pressure, temperature, and membrane thickness on reactor performance were evaluated. By increasing the feed temperature, the carbon dioxide production rate decreases, and pure hydrogen production rate increases. The higher CO2 generation was observed at elevated pressures. The effect of membrane thickness on CO2 emission was negligible.

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Recent Advances in Bimetallic Catalysts for Methane Steam Reforming in Hydrogen Production: Current Trends, Challenges, and Future Prospects

Yusuf,

Umar,

Kotob

et al. 2023

Chemistry An Asian Journal

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As energy demand continues to rise and the global population steadily grows, there is a growing interest in exploring alternative, clean, and renewable energy sources. The search for alternatives, such as green hydrogen, as both a fuel and an industrial feedstock, is intensifying. Methane steam reforming (MSR) has long been considered a primary method for hydrogen production, despite its numerous advantages, the activity and stability of the conventional Ni catalysts are major concerns due to carbon formation and metal sintering at high temperatures, posing significant drawbacks to the process. In recent years, significant attention has been given to bimetallic catalysts as a potential solution to overcome the challenges associated with methane steam reforming. Thus, this review focuses on the recent advancements in bimetallic catalysts for hydrogen production through methane steam reforming. The review explores various aspects including reactor type, catalyst selection, and the impact of different operating parameters such as reaction temperature, pressure, feed composition, reactor configuration, and feed and sweep gas flow rates. The analysis and discussion revolve around key performance indicators such as methane conversion, hydrogen recovery, and hydrogen yield.

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The recent areas of applicability of palladium based membrane technologies for hydrogen production from methane and natural gas: A review

Cited by 62 publications

References 170 publications

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application

A novel concept for pure hydrogen production and a massive reduction in CO₂ emissions from the formaldehyde absorption process

Recent Advances in Bimetallic Catalysts for Methane Steam Reforming in Hydrogen Production: Current Trends, Challenges, and Future Prospects

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The recent areas of applicability of palladium based membrane technologies for hydrogen production from methane and natural gas: A review

Cited by 62 publications

References 170 publications

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application

Structure and Properties of Porous Ti3AlC2-Doped Al2O3 Composites Obtained by Slip Casting Method for Membrane Application

A novel concept for pure hydrogen production and a massive reduction in CO2 emissions from the formaldehyde absorption process

Recent Advances in Bimetallic Catalysts for Methane Steam Reforming in Hydrogen Production: Current Trends, Challenges, and Future Prospects

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Product

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A novel concept for pure hydrogen production and a massive reduction in CO₂ emissions from the formaldehyde absorption process