Carbon Capture Scientific LLC

Brownsville, PA, United States

Carbon Capture Scientific LLC

Brownsville, PA, United States

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Li Z.,Carbon Capture Scientific LLC | Chen S.,Carbon Capture Scientific LLC | Hopkinson D.,U.S. National Energy Technology Laboratory | Luebke D.,U.S. National Energy Technology Laboratory
International Journal of Greenhouse Gas Control | Year: 2016

This paper verified a phase equilibrium approach for optimization of conceptual solvents by using process simulations of commercial solvents N-methyl-diethanolamine (MDEA) and 2-amino-2-methyl-1-propanol (AMP) aqueous solution, for a conventional absorption/desorption based postcombustion CO2 capture process. The simulated total heat/total equivalent work for the investigated tertiary/hindered amines has the same trends as those based on the phase equilibrium approach for conceptual solvents with the same heat of reactions. Moreover, the simulated CO2 working capacities for the commercial solvents agree well with those obtained with the phase equilibrium approach for the corresponding conceptual solvents, verifying the phase equilibrium approach. Results of parametric tests using the AMP aqueous solution illustrate that there is an optimal lean loading for the lean solution and an optimal temperature for the stripper inlet solvent to achieve the least total equivalent work/total heat. © 2015 Elsevier Ltd.


Hopkinson D.,U.S. National Energy Technology Laboratory | Luebke D.,U.S. National Energy Technology Laboratory | Li Z.,Carbon Capture Scientific LLC | Chen S.,Carbon Capture Scientific LLC
Industrial and Engineering Chemistry Research | Year: 2014

In this paper a simple approach was developed to optimize a conceptual solvent for conventional absorption-based postcombustion CO2 capture processes. The solvent was configured on the basis of properties of commercially available amine solvents and optimized to achieve the least total equivalent work. The conceptual solvent is characterized by its heat of reaction, which was further used to estimate the sensible and stripping heat of the process through the newly proposed approach. Results showed that the optimal heat of reaction for a conceptual solvent depends on operating conditions. With typical solvent regeneration conditions for conventional processes (2 atm operating pressure), the optimal heat of reaction for a conceptual solvent is about 71 kJ/mol CO 2, and the total equivalent work for the process is 0.1034 kWh/kg CO2. The results of this study will provide new insights and guidance for identifying and developing energy-efficient solvents for CO2 capture applications. © 2014 American Chemical Society.


Patent
Carbon Capture Scientific Llc. | Date: 2010-07-09

The present invention provides a gas pressurized separation system to strip a product gas from a liquid stream and yield a high pressure gaseous effluent containing the product gas. The system comprises a gas pressurized stripping apparatus, such as a column, with at least one first inlet allowing flow of one or more liquid streams in a first direction and at least one second inlet allowing flow of one or more high pressure gas streams in a second direction, to strip the product gas into the high pressure gas stream and yield through at least one outlet a high pressure gaseous effluent containing the product gas; and two or more heat supplying apparatuses provided at different locations along the column. Processes for separating a product gas from a gaseous mixture to yield a high pressure gaseous effluent containing the product gas, utilize the gas pressurized separation system described above.


Patent
Carbon Capture Scientific LLC. | Date: 2013-01-07

The present invention provides a gas pressurized separation system to strip a product gas from a liquid stream and yield a high pressure gaseous effluent containing the product gas. The system comprises a gas pressurized stripping apparatus, such as a column, with at least one first inlet allowing flow of one or more liquid streams in a first direction and at least one second inlet allowing flow of one or more high pressure gas streams in a second direction, to strip the product gas into the high pressure gas stream and yield through at least one outlet a high pressure gaseous effluent containing the product gas; and two or more heat supplying apparatuses provided at different locations along the column. Processes for separating a product gas from a gaseous mixture to yield a high pressure gaseous effluent containing the product gas, utilize the gas pressurized separation system described above.

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