Review of Recent Pilot Plant Activities with Concentrated Piperazine

Chen, Eric; Zhang, Yue; Lin, Yu‐Jeng; Nielsenb, Paul; Rochelle, Gary T.

doi:10.1016/j.egypro.2017.03.1266

Cited by 12 publications

(6 citation statements)

References 2 publications

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“…Table compares the CO 2 capacities of TEPA + [emim][AcO] mixed solvents and those of other solvents reported in the literature. ,,,,− It can be seen that TEPA + [emim][AcO] mixed solvents exhibit much higher CO 2 capacities than [emim][Gly] + [emim][AcO] and [emim][Ala] + [emim][AcO] mixed solvents because TEPA has a much higher amine density than AAILs. TEPA + [emim][AcO] mixed solvents also exhibit higher CO 2 capacities than PEI + [emim][AcO] mixed solvents.…”

Section: Results and Discussionmentioning

confidence: 99%

Effective Capture of Carbon Dioxide by Tetraethylenepentamine Assisted with 1-Ethyl-3-methylimidazolium Acetate: Experimental and Thermodynamic Analysis

Zhang

Liu

et al. 2019

Energy Fuels

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There is an urgent demand to explore advanced solvents for CO2 capture considering the defects associated with traditional alkanolamine-based solvents. In this work, tetraethylenepentamine (TEPA) was selected as the key component, while 1-ethyl-3-methylimidazolium acetate ([emim][AcO]) was selected as the chemical diluent and supplementary component to construct the mixed solvents for CO2 absorption based on the concept of “chemical solvent in chemical solvent”. The CO2 absorption rates and capacities of mixed solvents were experimentally investigated. Impressively, the CO2 capacities reach a value of 3.41 mol/kg at 313.2 K and 15.0 kPa for TEPA + [emim][AcO] (0.2:0.8), surpassing those of most other solvents reported in the literature. Furthermore, a dual-site reaction equilibrium thermodynamic model equation was derived to correlate the CO2 capacities and calculate the reaction equilibrium constants and enthalpy changes of CO2 absorption. On the basis of the experimental and thermodynamic analysis, it is believed that TEPA + [emim][AcO] mixed solvents are promising candidates for the capture of CO2 from flue gas.

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Section: Results and Discussionmentioning

confidence: 99%

Effective Capture of Carbon Dioxide by Tetraethylenepentamine Assisted with 1-Ethyl-3-methylimidazolium Acetate: Experimental and Thermodynamic Analysis

Zhang

Liu

et al. 2019

Energy Fuels

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“…In addition to DEA, a widely used secondary cyclic amine solvent is piperazine (PZ). PZ has a high absorption rate, good stability, low viscosity, and high capacity [50], but is prone to form solid precipitates [51] and it is therefore rarely used as a standalone solvent. Secondary amines also generally offer the benefit of decreased energy demand for their thermal regeneration than primary amines due to their lower volatility and lower circulation rates.…”

Section: Single Amine Solventsmentioning

confidence: 99%

Solvents for Membrane-Based Post-Combustion CO2 Capture for Potential Application in the Marine Environment

et al. 2022

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Carbon capture on-board ships represents a powerful technological measure in order for the shipping industry to meet the very stringent GHG emission reduction requirements. Operation within the ship environment introduces a number of constraints associated mainly with space, energy supply, and safety which have to be addressed using compact yet efficient solutions. To this end, solvent-based membrane CO2 capture offers several advantages and has the necessary technological maturity for on-board installation. Solvent choice remains a critical issue both for reasons associated with process efficiency as well as on-board safety. In this paper, we present an up-to-date comprehensive review of the different solvents that can be used for post-combustion CO2 capture. Furthermore, we investigated the solvents’ performance as determined by their inherent characteristics, properties, and behavior for a range of operating conditions against the strict shipping requirements. A preliminary qualitative comparative assessment was carried out based on appropriately selected key performance indicators (KPIs) pertinent to the requirements of the shipping industry. The identified solvent classes were compared using the most critical KPIs for system integration with the ship. It was concluded that at present, no solvent category can efficiently address all the requirements of the ship. However, widely used solvents such as secondary amines showed relatively good compatibility with the majority of the introduced KPIs. On the other hand, more recently developed molecules, such as phase change solvents and ionic liquids, can easily prevail over the vast majority of the identified solvents as long as they are brought to the same level of technological maturity with benchmark solvents. Such a conclusion points toward the need for accelerating research on more tailor-made and performance-targeted solvents.

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“…Aqueous piperazine solution has also been proposed in the literature as an alternative solvent to MEA for the PCC process [20]. It has been demonstrated to have lower volatility, higher CO2 absorption capacity, twice the absorption rate of 30 wt% MEA and higher resistance to oxidative and thermal degradation [21]. It was also reported to have good heat transfer properties that resulted in a higher normalized capacity of 27% above 30 wt% MEA [22].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The 40 wt% PZ is considered as the standard solvent concentration for the PCC process with PZ. CO2 absorption with PZ has been extensively studied at pilot plant facilities such as the J.J pickle facility at the University of Texas at Austin, USA [21,29,30], the CO2 SEParation PLant (CO2SEPPL) at the EVN power plant in Dürnrohr, Austria [23,31], the CSIRO CO2 capture pilot plant at Tarong power plant in Queensland, Australia [32], and the National Carbon Capture gas Centre (NCCC) in Wilsonville, Alabama, USA [6,22,33]. The findings from the CO2SEPPL at the EVN power plant in Austria show that the regeneration energy of the PCC process can be reduced by 14% using 37.5 wt% PZ.…”

Section: Literature Reviewmentioning

confidence: 99%

Technical and economic performance assessment of post-combustion carbon capture using piperazine for large scale natural gas combined cycle power plants through process simulation

2021

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Review of Recent Pilot Plant Activities with Concentrated Piperazine

Cited by 12 publications

References 2 publications

Effective Capture of Carbon Dioxide by Tetraethylenepentamine Assisted with 1-Ethyl-3-methylimidazolium Acetate: Experimental and Thermodynamic Analysis

Effective Capture of Carbon Dioxide by Tetraethylenepentamine Assisted with 1-Ethyl-3-methylimidazolium Acetate: Experimental and Thermodynamic Analysis

Solvents for Membrane-Based Post-Combustion CO2 Capture for Potential Application in the Marine Environment

Technical and economic performance assessment of post-combustion carbon capture using piperazine for large scale natural gas combined cycle power plants through process simulation

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