Optimization for hydrogen production from methanol partial oxidation over Ni–Cu/Al2O3 catalyst under sprays

Chih, Yi-Kai; Shi, Yuqi; Wei-Hsin, Chen; Lin, Baoping; Kuo, Jenn‐Kun; You, Siming; Lin, Hong‐Ping

doi:10.1016/j.ijhydene.2021.06.103

Cited by 16 publications

(6 citation statements)

References 64 publications

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“…Among the widely used RSM strategies to optimize a process involving several factors, the Box‐Behnken design (BBD) involves fewer experimental runs for three factors, analyzes quadratic response surfaces, and creates a polynomial model 32,33 . So BBD has been employed for a wide range of applications.…”

Section: Methodsmentioning

confidence: 99%

“…Among the widely used RSM strategies to optimize a process involving several factors, the Box-Behnken design (BBD) involves fewer experimental runs for three factors, analyzes quadratic response surfaces, and creates a polynomial model. 32,33 So BBD has been employed for a wide range of applications. Shown in Equation ( 2) is a secondorder polynomial equation that best describes the relationship between the input variables and the response in an experimental model,…”

Section: Response Surface Methodology (Rsm)mentioning

confidence: 99%

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Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

Chen

Chiu

Chein

et al. 2022

Intl J of Energy Research

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Hydrogen production via partial oxidation of methanol (POM) in an ultrasonic spray system was studied experimentally, using an h-BN-Pt/Al 2 O 3 catalyst with ultra-low Pt contents (0.2 wt%). The effects of oxygen-to-methanol (O 2 /C) ratio, methanol flow rate, and gas hourly space velocity (GHSV) of air and carrier gas on H 2 yield were examined. Compared to conventional spray systems, the ultrasonic spray system could produce more uniformly dispersed methanol and thus further enhance the POM reaction. The results showed a higher O 2 /C ratio (0.8) enhanced the POM, which poses higher CH 3 OH conversion, higher reaction temperature, and lower CO and CH 4 productions. The CO 2 concentration was mainly affected by GHSV and CH 3 OH flow rate. A higher GHSV led to a quicker retention time for the reactants in the catalyst bed, and a lower CH 3 OH flow rate deteriorates the CO 2 concentration. Based on the Box Behnken design (BBD) from response surface methodology (RSM) and analysis of variance (ANOVA), the optimal operating conditions are found to be O 2 /C ratio = 0.8, CH 3 OH flow rate = 0.7 mL min À1 , and GHSV = 10 000 h À1 . Combining these conditions, the predicted maximum H 2 yield is 1.635 mol‧(mol CH 3 OH) À1 which is close to the experimental value of 1.646 mol‧(mol CH 3 OH) À1 . The RSM and ANOVA not only resulted in a quadratic response surface regression model and significant regression coefficients but also indicated CH 3 OH flow rate being the primary factor.analysis of variance (ANOVA), h-BN-Pt/Al 2 O 3 catalyst, hydrogen production, partial oxidation of methanol (POM), response surface methodology (RSM), ultrasonic sprays

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Section: Methodsmentioning

confidence: 99%

Section: Response Surface Methodology (Rsm)mentioning

confidence: 99%

Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

Chen

Chiu

Chein

et al. 2022

Intl J of Energy Research

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“…This sustainable energy form contributes to the promotion of a low-carbon economy and promotes sustainable development. Currently, mainstream technologies for the efficient catalytic preparation of hydrogen from methanol include methanol decomposition (MD, mixture of H 2 and CO), − steam reforming of methanol (SRM), − partial oxidation of methanol (POM), , and oxidative steam reforming of methanol (OSRM) . Of these methods, OSRM combines endothermic SRM and exothermic POM to achieve thermal equilibrium (known as autothermal reforming) by adjusting the feed ratio, eliminating the need for external heat input, and reducing energy consumption .…”

Section: Introductionmentioning

confidence: 99%

Effect of CeO₂ Morphology in Catalytic Performance via Methanol Oxidative Steam Reforming for Hydrogen Production

Zhong,

Liang,

Huang

et al. 2024

Ind. Eng. Chem. Res.

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Methanol-based hydrogen production, including reforming, offers the advantage of yielding products with lower CO, CH 4 , and CO 2 contents, thereby reducing environmental pollution. CeO 2 is extensively employed in catalytic reforming due to its rich oxygen vacancies. However, the morphology of CeO 2 influences the oxygen vacancy content, as well as the dispersion and stability of active metal species, ultimately affecting the catalyst's performance. In this letter, we synthesized three Ni/CeO 2 catalysts with distinct morphologies (sheet, particle, and cube) and explored their catalytic activity in the oxidative steam reforming of methanol for hydrogen generation. Among the three catalysts, Ni/CeO 2 −NS exhibited a superior surface area and the high oxygen vacancy content effectively anchors Ni on the surface of CeO 2 − NS, which can better activate water and oxygen molecules in methanol oxidative steam reforming. It exhibited the highest H 2 production rate (3568.8−3729.74 mmol gcat −1 min −1 ) and methanol conversion (99.13−99.71%) at 450−600 °C. Furthermore, only marginal mass losses were observed for Ni/CeO 2 −NS (1.81%), indicating minimal carbon decomposition.

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“…The biggest part of the world's energy demand is still met by fossil fuels 2 . However, greenhouse gas emissions occurred by fossil fuels are known as the main reason for global warming 3‐7 . The importance of global warming is understood well by the extreme instability of climate change in recent years 8 .…”

Section: Introductionmentioning

confidence: 99%

“…Various compositions and configurations are created on these support materials to increase the catalytic efficiency. Metallic composites such as Ni, Mo, Sn, Au, Zn, Pd, Al, Rh, Fe, Ru, Ag, and Cu or their oxidized structures are generally used in the experiments 4,17‐20,24‐27 . These cathode active materials are attached to support materials via electrochemical deposition, 28‐30 spray coating, 31,32 or with a conductive polymer binder such as polyvinylidene fluoride, 33,34 nafion, and carboxymethyl cellulose 16,35 …”

Section: Introductionmentioning

confidence: 99%

A new catalyst for HER : Tin‐Cobalt Co‐deposited nickel matrix

Ağfındık

Aydın

Farsak

et al. 2022

Intl J of Energy Research

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Hydrogen, called the energy source of the future, is a superb energy carrier. Electrolysis of water is the only method in the production of hydrogen classified with the green category. However, although the cost of hydrogen production by electrolysis has decreased considerably in recent years, it still has not reached reasonable levels. It is necessary to develop economical catalysts instead of precious metals with high catalytic efficiency such as platinum to reduce the electrolysis costs and increase the hydrogen evolution efficiency. In this study, the cathode electrode was prepared by depositing Ni, Sn, and Co on the nickel mesh support material using the electrochemical method. The efficiency of the prepared electrodes in terms of hydrogen evolution reaction abilities was investigated. Therefore, electrochemical impedance spectroscopy, linear sweep voltammetry, cyclic voltammetry, and potentiodynamic polarization measurements were taken with a three-electrode technique in a 1.0 M KOH electrolyte medium. The lowest overvoltage for the hydrogen evolution was determined as 0.1911 V with the SnCo#Ni electrode. The surface characterizations of the prepared electrodes were made using scanning electron microscope-energy-disperse X-ray.

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Optimization for hydrogen production from methanol partial oxidation over Ni–Cu/Al2O3 catalyst under sprays

Cited by 16 publications

References 64 publications

Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

Effect of CeO₂ Morphology in Catalytic Performance via Methanol Oxidative Steam Reforming for Hydrogen Production

A new catalyst for HER : Tin‐Cobalt Co‐deposited nickel matrix

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Optimization for hydrogen production from methanol partial oxidation over Ni–Cu/Al2O3 catalyst under sprays

Cited by 16 publications

References 64 publications

Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

Effect of CeO2 Morphology in Catalytic Performance via Methanol Oxidative Steam Reforming for Hydrogen Production

A new catalyst for HER : Tin‐Cobalt Co‐deposited nickel matrix

Contact Info

Product

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Effect of CeO₂ Morphology in Catalytic Performance via Methanol Oxidative Steam Reforming for Hydrogen Production