Design of compact methanol reformer for hydrogen with low CO for the fuel cell power generation

Wang, Harvey H.F.; Chen, S.C.; Yang, Sheng; Yeh, G.T.; Rei, Min-Hon

doi:10.1016/j.ijhydene.2012.01.100

Cited by 17 publications

(2 citation statements)

References 8 publications

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“…Before starting the internal combustion engine of the vehicle, an electric valve 14 is opened, and gas is supplied to the internal combustion engine supply system through the pressure controller 15, which maintains the constant gas pressure downstream and the water gate 16. Water seal 16 prevents the gas combustion flame front from spreading from the ICE to the generator (Wang et al, 2012). The overpressure in the container 12 above the liquid is controlled by safety valve 17 and the vacuum is compensated by check valve 18.…”

Section: The Essence Of the Utility Model Is Explained In The Figurementioning

confidence: 99%

Hydrogen Generator for Internal Combustion Engine

Bakyt,

Shalbayev,

Abdullayev

et al. 2023

JART

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The test of the hydrogen generator on the internal combustion engine of the car is considered in the work. In the machine, HHO and fuel are jointly burned to reduce fuel consumption and exhaust emissions. Numerous studies prove the undeniable advantage of using a car using a hydrogen generator compared to traditional fuels. The use of a lean combustible mixture in internal combustion engines reduces the volume of exhaust gases and increases thermal efficiency. Experimental results show that by adding KOH with a concentration of (35-50 g/l) to the cell, fuel consumption can be reduced (8.4-43.6%), and exhaust pollutant emissions are reduced. Thus, adding hydrogen to an internal combustion engine can reduce fuel consumption and vehicle exhaust emissions.

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Section: The Essence Of the Utility Model Is Explained In The Figurementioning

confidence: 99%

Hydrogen Generator for Internal Combustion Engine

Bakyt,

Shalbayev,

Abdullayev

et al. 2023

JART

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show abstract

“…H.H.F. Wang et al [47] studied the effect of the heat transfer area and the thermal conductivity on compact methanol steam reformer by using three different reactor materials with differ in their thermal conductivity: aluminum alloy (AL-6161, 180 W/M-K), brass-34 (110 W/M-K) and stainless steel-316 (15 W/M-K). The results revealed that the higher thermal conductivity of the reactor material improve heat flux and decreased heat lost to the surrounding, led to a higher thermal efficiency and smaller temperature differentials.…”

Section: Literature Reviewsmentioning

confidence: 99%

Fuel processor for hydrogen production via methanol steam reforming over copper-based catalysts

Phongboonchoo

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The purpose of this work is to produce high purity hydrogen stream from methanol by an integration of steam reformer and preferential oxidation of CO unit. For methanol steam reformer (MSR), Catalytic activities of Ce-Mg promoted Cu/Al₂O₃ catalysts was investigated in terms of the methanol conversion level, carbon monoxide (CO) selectivity and hydrogen (H₂) yield. It was found that the Ce-Mg bi-promoter catalysts gave a higher performance due to magnesium penetration into the cerium structure causing oxygen vacancy defects on the ceria. A face-centered central composite design response surface model was then designed to optimize the condition at a 95% conﬁdence interval revealed an optimal copper level of 46–50 wt%, Mg/(Ce+Mg) of 16.2–18.0%, temperature of 245–250 °C and S/C ratio of 1.74–1.80. In case of preferential oxidation of CO unit, catalytic activities of copper based catalysts over a series of modified ceria support was investigated in terms of the CO conversion level and carbon dioxide (CO₂) selectivity. The results revealed that the Ce-Mg support gave a higher performance due to magnesium promoted water-gas shift reaction and improved nanorods arrangement. Box-Behnken design response surface model was then designed to optimize the condition at a 95% conﬁdence interval revealed an optimal CO level of 0.65-0.75%, O₂ level of 0.80-0.90% and temperature of 130–140 °C. When integrating both MSR and PROX unit, high purity hydrogen was yielded around 45-47% without CO detected at a rate of ~120 L d⁻¹ g.cat⁻¹.

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Fabrication of Palladium Membranes Supported on a Silicalite‐1 Zeolite‐Modified Alumina Tube for Hydrogen Separation

Yu¹,

Wang²,

Zhou³

et al. 2014

Chem Eng & Technol

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Thin palladium membranes were fabricated on macroporous α‐Al2O3 tubes by electroless plating. The silicalite‐1 (Sil‐1) zeolite serving as intermediate and diffusion barrier layer was introduced to modify the surface roughness and pore size of the porous substrate and prevent the atomic interdiffusions of the metal elements between Pd layer and the support. The Pd composite membranes were studied by scanning electron microscopy (SEM), X‐ray diffraction (XRD), and electron probe microanalysis (EPMA), revealing that morphology and structure of the Sil‐1 layer significantly influence the Pd membrane preparation. Single‐gas permeation tests were carried out with gas H2 and N2 to determine the permeation performance of the membranes. The resulting membrane exhibited long‐term stability under hydrogen permeation.

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Design of compact methanol reformer for hydrogen with low CO for the fuel cell power generation

Cited by 17 publications

References 8 publications

Hydrogen Generator for Internal Combustion Engine

Hydrogen Generator for Internal Combustion Engine

Fuel processor for hydrogen production via methanol steam reforming over copper-based catalysts

Fabrication of Palladium Membranes Supported on a Silicalite‐1 Zeolite‐Modified Alumina Tube for Hydrogen Separation

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