The pilot dual-reflux vacuum pressure swing adsorption unit for CO2 capture from flue gas

Wawrzyńczak, Dariusz; Majchrzak‐Kucęba, Izabela; Srokosz, K.; Kozak, Mateusz; Nowak, Wojciech; Zdeb, Janusz; Smółka, Wojciech; Zajchowski, Artur

doi:10.1016/j.seppur.2018.07.079

Cited by 47 publications

(13 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The process involved adsorption (AD), pressure equalization (PE), cocurrent depressurization (CD), vacuum (VA), and idle (ID), and EIKME 13X was used as the adsorbent. The feed composition of the process is adopted from the study by Wawrzyńczak et al [36]. The flue gas emitted by the power plant is first desulfurized.…”

Section: Psa Processmentioning

confidence: 99%

CO2 Capture from Flue Gas of a Coal-Fired Power Plant Using Three-Bed PSA Process

et al. 2021

View full text Add to dashboard Cite

The pressure swing adsorption (PSA) process was used to capture carbon dioxide (CO2) from the flue gas of a coal-fired power plant to reduce CO2 emissions. Herein, CO2 was captured from flue gas using the PSA process for at least 85 vol% CO2 purity and with the other exit stream from the process of more than 90 vol% N2 purity. The extended Langmuir–Freundlich isotherm was used for calculating the equilibrium adsorption capacity, and the linear driving force model was used to describe the gas adsorption kinetics. We compared the results of breakthrough curves obtained through experiments and simulations to verify the accuracy of the mass transfer coefficient. The flue gas obtained after desulphurization and water removal (13.5 vol% CO2 and 86.5 vol% N2) from a subcritical 1-kW coal-fired power plant served as the feed for the designed three-bed, nine-step PSA process. To determine optimal operating conditions for the process, the central composite design (CCD) was used. After CCD analysis, optimal operating conditions with a feed pressure of 3.66 atm and a vacuum pressure of 0.05 atm were obtained to produce a bottom product with a CO2 purity of 89.20 vol% and a recovery of 88.20%, and a top product with a N2 purity of 98.49 vol% and a recovery of 93.56%. The mechanical energy consumption was estimated to be 1.17 GJ/t-CO2.

show abstract

Section: Psa Processmentioning

confidence: 99%

CO2 Capture from Flue Gas of a Coal-Fired Power Plant Using Three-Bed PSA Process

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Table 1 provides an overview of those that have reached demonstration stage at pilot scale in coal fired power plants. Most of them [10][11][12][13][14][15] are under active development either to reduce their energy requirements and/or to improve their removal efficiency and CO 2 purity. In general, fixed-bed adsorbers are used in pressure driven processes, whereas circulating solids are preferred for temperature driven processes due to the associated thermal inertia.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a novel multibed heat-integrated vacuum and temperature swing adsorption post-combustion CO2 capture process

Plaza

Rubiera

2019

Applied Energy

View full text Add to dashboard Cite

A novel multibed heat-integrated vacuum and temperature swing adsorption process has been designed to capture 85% of the CO 2 emitted by an advanced supercritical coal fired power plant of 820 MW e taken as reference, and to produce a concentrated product with 95% of CO 2 using a microporous carbon obtained from olive stones. The overall performance of the postcombustion CO 2 capture process has been evaluated from the results of the dynamic simulation of the process at cyclic steady state, using a detailed non-isothermal nonequilibrium dynamic fixed-bed adsorption model that takes into consideration competitive adsorption between the main flue gas components: N 2 , CO 2 and H 2 O. The proposed process operates between 30 °C and 1.05 bar and 80 °C and 0.05 bar. The specific heat duty of the process, 2.41 MJ th kg -1 CO 2 , which is lower than the benchmark amine absorption technology, can be satisfied using waste heat. On the other hand, its electricity consumption, 1.15 MJ e kg -1 CO 2 , is higher. Increasing the pressure of the production step reduces significantly the energy demand of the process, but also its capture rate. Substantial improvements in performance can be expected from adsorbent development. Adsorption is an environmentally benign technology with great potential to mitigate CO 2 emissions from industrial processes with unused waste heat sources.

show abstract

“…Many CCS technologies ( Figure 1). Have been developed for the capture of CO2 such as absorption [4]- [8], physical/chemical adsorption [9]- [15], membrane [8], [16], [17] cryogenic processes [18], [19], and combination of two or more of them, named as hybrid processes [20]. According to the literature, the chemical absorption, using aqueous alkanolamine solution has been stated as the most suitable technology for capturing CO2 among these methods [21]- [23].…”

Section: Introductionmentioning

confidence: 99%

A review on silica aerogels for CO2 capture applications

Yay¹,

Gi̇zli̇²

2019

Pamukkale J Eng Sci

View full text Add to dashboard Cite

ÖzIn recent years, greenhouse gases known as, CH4, N2O, O3, CFC and especially CO2 are released into the atmosphere through activities such as combustion, industrial emission or anaerobic decomposition and they cause an increase in surface temperature and global climate changes due to their high heat absorption capacities. Both political and scientific studies gained momentum as the countries of the world set the priority for the reduction of CO2 emissions. Developing methods for reducing global carbon emissions; are known as carbon capture and storage are known as (CCS) technologies. They are mainly classified as pre-combustion, post-combustion and oxyfuel combustion processes. Adsorption, physical and/or chemical absorption, membrane and cryogenic process can be considered as the most common CCS technologies. Porous solid sorbents can be also used for the physical adsorption of carbon dioxide from flue gases, as well. However, these processes are also known to have weaknesses in terms of both selectivity and cyclic operation. More recently, modification of mesaporous materials with amine groups have been shown to be efficient solid adsorbents for CO2 capture. With this review, current scientific studies on the recent advances in carbon sorption applications of silica aerogels has been investigated. The review consists of three main sections: preparation and modification of silica aerogels, literature studies on CO2 sorption performances and future perspectives. As a result, it has been concluded that amine-modified silica aerogels are promising materials for the carbon capture for the post combustion processes with their superior properties.

show abstract

The pilot dual-reflux vacuum pressure swing adsorption unit for CO2 capture from flue gas

Cited by 47 publications

References 37 publications

CO2 Capture from Flue Gas of a Coal-Fired Power Plant Using Three-Bed PSA Process

CO2 Capture from Flue Gas of a Coal-Fired Power Plant Using Three-Bed PSA Process

Evaluation of a novel multibed heat-integrated vacuum and temperature swing adsorption post-combustion CO2 capture process

A review on silica aerogels for CO2 capture applications

Contact Info

Product

Resources

About