Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Ma, Shuangchen; Chen, Gongda; Han, Tingting; Zhu, Shengli; Yang, Jian

doi:10.1016/j.ijggc.2015.03.027

Cited by 22 publications

(5 citation statements)

References 25 publications

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“…With the addition of ammonia, controllable hydrolysis of nickel–ammonia by the subsequent addition of NaOH on Pt/C resulted in more homogeneous Ni(OH) x -Pt/C and consequent better dispersion and confined growth of A-PtNi/C (a detailed schematic diagram is shown in Scheme S1). − …”

Section: Resultsmentioning

confidence: 99%

Controlled Hydrolysis of a Nickel–Ammonia Complex on Pt Nanoparticles for the Preparation of Highly Active and Stable PtNi/C Catalysts

Zhong

Pan

et al. 2021

Ind. Eng. Chem. Res.

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Thermal annealing at high temperatures is usually employed to alloy Pt with transitional metals to produce Pt-based electrocatalysts in an oxygen reduction reaction for polymer exchange membrane fuel cells. How to curb thermal annealing induced aggregation and sintering has been a major concern in post-treatment. Here we developed an optimized impregnation method by controlled hydrolysis of a nickel−ammonia complex on Pt/C via dropwise addition of NaOH to form homogeneously dispersed catalyst precursors. These precursor powders are then subjected to thermal annealing and subsequent acidic leaching to produce alloyed A-PtNi/C catalysts. A-PtNi/C displayed a high mass activity (MA) and specific activity (SA) of 0.903 A mg Pt −1 @0.9 V and 2.36 mA cm −2 , respectively. In addition, the electrochemical surface area (ECSA) and MA only suffered losses of 3 and 33%, respectively, after an accelerated durability test. Both activity and stability of A-PtNi/C far exceed the 2020 Department of Energy target set for ORR catalysts.

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Section: Resultsmentioning

confidence: 99%

Controlled Hydrolysis of a Nickel–Ammonia Complex on Pt Nanoparticles for the Preparation of Highly Active and Stable PtNi/C Catalysts

Zhong

Pan

et al. 2021

Ind. Eng. Chem. Res.

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“…After the stripping process, the CO 2 carrying capacity of the regenerated solvent (NH 3 ) is about 0.07 kg CO 2 / kg solution. 36,37…”

Section: Co2 Capture Methodsmentioning

confidence: 99%

“…The hollow fiber of the monolith structure adsorbent reduces the pressure drop and attrition issues. 12,37 Table 4(a) presents the high-temperature and low-temperature adsorbents and their examples.…”

Section: Co2 Capture Methodsmentioning

confidence: 99%

“…After the stripping process, the CO 2 carrying capacity of the regenerated solvent (NH 3 ) is about 0.07 kg CO 2 / kg solution. 36,37 Dual alkali solvent The alteration of the Solvay process or NH 3 -soda process is a dual alkali absorption method. It mainly involves a two-step process.…”

Section: Absorption Processmentioning

confidence: 99%

“…The hollow fiber of the monolith structure adsorbent reduces the pressure drop and attrition issues. 12,37 Some porous (micro and meso) materials are zeolites, activated carbon, and molecular sieves. The solid adsorbent's packed bed form, or fluidized bed form has potential CO 2 adsorption performance than ordinary physical or chemical absorbent.…”

Section: Adsorption Processmentioning

confidence: 99%

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A review on materials and processes for carbon dioxide separation and capture

Maniarasu

Rathore

Murugan

2021

Energy & Environment

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In today’s world, owing to industrial expansion, urbanization, the rapid growth of the human population, and the high standard of living, the utilization of the most advanced technologies is unavoidable. The enhanced anthropogenic activities worldwide result in a continuous increase in global warming potential, thereby raising a global concern. The constant rise in global warming potential forces the world to mitigate greenhouse gases, particularly carbon dioxide. Carbon dioxide is considered as the primary contributor responsible for global warming and climatic changes. The global anthropogenic carbon dioxide emissions released into the atmosphere can eventually deteriorate the environment and endanger the ecosystem. Combating global warming is one of the main challenges in achieving sustainable development. Carbon capture and storage is a potential solution to mitigate carbon dioxide emissions. There are three main methods for carbon capture and storage: post-combustion, pre-combustion, and oxy-fuel combustion. Among them, post-combustion is used in thermal power plants and industrial sectors, all of which contribute a significant amount of carbon dioxide. Different techniques such as physical and chemical absorption, physical and chemical adsorption, membrane separation, and cryogenic distillation used for carbon capture are thoroughly discussed and presented. Currently, there are various materials including absorbents, adsorbents, and membranes used in carbon dioxide capture. Still, there is a search for new and novel materials and processes for separating and capturing carbon dioxide. This review article provides a comprehensive review of different methods, techniques, materials, and processes used for separating and capturing carbon dioxide from significant stationary point sources.

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Useful Mechanisms, Energy Efficiency Benefits, and Challenges of Emerging Innovative Advanced Solvent Based Capture Processes

Budzianowski¹

2016

Green Energy and Technology

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Innovative advanced solvent based capture processes (ASBCPs) employing sophisticated separation mechanisms have emerged as essential solutions that may dramatically reduce high energy requirement of CO 2 separation in capture plants. This study systematically characterises useful mechanisms of several such ASBCPs, being mostly at relatively low technology readiness levels. Based on improved understanding of these emerging ASBCPs it is shown how they can contribute to achieving energy efficiency benefits and thus increase CO 2 capture efficiency. It is followed by an analysis of practical examples of all ASBCPs recently presented in academic and patent literature. Finally, major challenges of discussed emerging ASBCPs are identified showing potential directions for further research and development. Overall, innovative ASBCPs employ very different mechanisms translating to different energy efficiency benefits in various CO 2 capture applications. The provided technological account along with the identified challenges may be useful for capture process developers which will be able to bring the most promising ASBCPs to higher technology readiness levels and finally they can be employed in the practice. Nomenclature 5OCB4,4′-pentyloxy cyanobiphenyl 7OCB 4,4′-heptyloxy cyanobiphenyl AA Aqueous ammonia AAS Amino acid salt ASBCP Advanced solvent based capture process BDA 1,4-butanediamine BTCA Benzotriazole-5-carboxylic acid

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Experimental study on the effect of Ni(II) additive on ammonia escape in CO2 capture using ammonia solution

Cited by 22 publications

References 25 publications

Controlled Hydrolysis of a Nickel–Ammonia Complex on Pt Nanoparticles for the Preparation of Highly Active and Stable PtNi/C Catalysts

Controlled Hydrolysis of a Nickel–Ammonia Complex on Pt Nanoparticles for the Preparation of Highly Active and Stable PtNi/C Catalysts

A review on materials and processes for carbon dioxide separation and capture

Useful Mechanisms, Energy Efficiency Benefits, and Challenges of Emerging Innovative Advanced Solvent Based Capture Processes

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