Advanced Catalysts for the Water Gas Shift Reaction

Baraj, Erlisa; Ciahotný, Karel; Hlinčík, Tomáš

doi:10.3390/cryst12040509

Cited by 10 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In contrast, the increase in CO 2 production and the reduction in CO production were significant. The high activity of cobalt catalysts in water-gas shift reactions was also observed by Baraj et al [30].…”

Section: Introductionsupporting

confidence: 73%

Efficient Conversion of Ethanol to Hydrogen in a Hybrid Plasma-Catalytic Reactor

et al. 2022

View full text Add to dashboard Cite

The present work describes highly efficient hydrogen production from ethanol in a plasma-catalytic reactor depending on the discharge power and catalyst bed temperature. Hydrogen production increased as the power increased from 15 to 25 W. A further power increase to 35 W did not increase hydrogen production. The catalyst was already active at a temperature of 250 °C, and its activity increased with increasing temperature to 450 °C. The further temperature increase did not increase the activity of the cobalt catalyst. The most important advantage of using the catalyst was the increased ethanol conversion to CO2 instead of CO production. As a result, the hydrogen yield was very high and reached 4.1 mol(H2)/mol(C2H5OH). This result was obtained with a stoichiometric molar ratio of water to ethanol of 3.

show abstract

Section: Introductionsupporting

confidence: 73%

Efficient Conversion of Ethanol to Hydrogen in a Hybrid Plasma-Catalytic Reactor

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The observed decrease in conversion suggests a potential decline in catalyst activity. Concurrently, a reduction in conversion implies a decrease in catalyst activity [21]. The actual conversion, however, is not only influenced by catalyst activity but also by factors such as pressure drop, amount of incoming feed, flow rate, etc.…”

Section: Catalyst Performance According Tomentioning

confidence: 99%

Catalyst Lifetime Analysis for High-Temperature Shift Converter (104-D1) at Urea Factory

Rahmatullah,

Putri,

Mahendra

et al. 2023

CHEESA

View full text Add to dashboard Cite

<p class="StyleE-JOURNALAbstrakKeywordsBold">High Temperature Shift (HTS) Converter (104-D1) have a function to convert CO gas into CO<sub>2</sub> in the ammonia unit. The presence of CO could be poisoning the catalyst in the ammonia converter. The performance of HTS (104-D1) was ideal if the percentage of CO outlet is above 3.41 mol % dry basis. The performance of HTS (104-D) was influenced by operating conditions (pressure and temperature) and the ratio of steam to carbon. The increase in temperature in HTS (104-D1) can increase in the reaction rate and a decrease in CO conversion due to a decrease in catalyst performance. The research aims to find out how the performance of HTS (104-D1) after Turn Around process (catalyst replacement) that reviewed based on the operating conditions and the resulting CO conversion. The analysis was carried out by comparing the CO conversion from the actual data with the CO conversion from the design data by using the regression equation method to predict the lifetime of the catalyst. CO conversion obtained from the design data is 69.42 %. Conversion of actual data in June, July, August, September and October was 67.43 %; 78.32 %; 77.93 %; 77.75 %; and 77.40 %. The lifetime of the HTS catalyst (104-D1) PUSRI-IIB was estimated to be used up to 5 years after Turn Around process.</p>

show abstract

“…Для работы катализаторов без потери стабильности, а также для уменьшения осаждения углерода необходимы промоторы. Одними из наиболее термически стабильных являются благородные металлы [25].…”

Section: нефтехимияunclassified

PRODUCTION OF HYDROGEN BY A WATER GAS SHIFT REACTION ON SOL-GEL BIMETALLIC Co-CONTAINING CATALYSTS

ZHANTURGANOV¹,

BOLEUBAYEV²,

ITKULOVA³

2022

NiG

View full text Add to dashboard Cite

Modern oil refining requires an increasing amount of hydrogen to carry out hydrogenation processes and hydrotreatment of increasingly heavy oil and obtain high-quality products.Water gas shift reaction (WGSR) being the interaction of steam with carbon monoxide is one of the stages of industrial hydrogen production. Despite the sufficient development of the process, the search for more efficient catalysts for this process does not stop.In this work, the bimetallic cobalt-containing alumina supported catalysts modified with small amount of noble metals and prepared by the solgel method were synthesized and tested in WGSR. The total metal content was 5 mass %, a ratio of Co:M=98:2, where M=Rh or Pd. The effect of process temperature and the nature of additives on behavior of synthesized catalysts has been studied. It has been shown that the sol-gel 5% Co-M/ Al2 O3 catalysts have high activity, thus at t=390o C the extent of carbon oxide conversion reaches 96.5-97.5% depending on the nature of the second metal. The main products of the reaction are hydrogen and carbon dioxide. Both catalysts can be considered as high-temperature catalysts for WGSR.

show abstract

Advanced Catalysts for the Water Gas Shift Reaction

Cited by 10 publications

References 29 publications

Efficient Conversion of Ethanol to Hydrogen in a Hybrid Plasma-Catalytic Reactor

Efficient Conversion of Ethanol to Hydrogen in a Hybrid Plasma-Catalytic Reactor

Catalyst Lifetime Analysis for High-Temperature Shift Converter (104-D1) at Urea Factory

PRODUCTION OF HYDROGEN BY A WATER GAS SHIFT REACTION ON SOL-GEL BIMETALLIC Co-CONTAINING CATALYSTS

Contact Info

Product

Resources

About