Pre‐Combustion Carbon Capture

Pardemann, Robert; Meyer, Bernd

doi:10.1002/9781118991978.hces061

Cited by 12 publications

(11 citation statements)

References 19 publications

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“…3500°C). Although, the recycled CO 2 can be used to moderate this temperature [18] Pre-combustion [265][266][267][268] CO 2 is separated from H 2rich fuel before combustion. For example, synthetic gas is produced from fossil fuel by adding steam or pure oxygen at high temperature and pressure (1400°C and 25-55 atm) and a subsequent water-gas shift reaction.…”

Section: Combining Electrochemical Methods With Conventional Capture mentioning

confidence: 99%

Electrochemical carbon dioxide capture to close the carbon cycle

Sharifian

Wagterveld²,

Digdaya

et al. 2021

Energy Environ. Sci.

283

196

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Section: Combining Electrochemical Methods With Conventional Capture mentioning

confidence: 99%

Electrochemical carbon dioxide capture to close the carbon cycle

Sharifian

Wagterveld²,

Digdaya

et al. 2021

Energy Environ. Sci.

283

196

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“…At first, fuel is converted to a combustible gas. This gas is used for power generation [8]. CO2 is separated and sequestered from this gas generated from fossil fuel before combustion [9].…”

Section: Precombustion Carbon Capturementioning

confidence: 99%

A Critical Review of CO2 Capture Technologies and Prospects for Clean Power Generation

2019

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With rapid growth in global demand for energy, the emission of CO2 is increasing due to the use of fossil fuels in power plants. Effective strategies are required to decrease the industrial emissions to meet the climate change target set at 21st Conference of the Parties (COP 21). Carbon capture and storage have been recognized as the most useful methods to reduce the CO2 emissions while using fossil fuels in power generation. This work reviews different methods and updates of the current technologies to capture and separate CO2 generated in a thermal power plant. Carbon capture is classified in two broad categories depending on the requirement of separation of CO2 from the gases. The novel methods of oxy combustion and chemical looping combustion carbon capture have been compared with the traditional post combustion and precombustion carbon capture methods. The current state of technology and limitation of each of the processes including commonly used separation techniques for CO2 from the gas mixture are discussed in this review. Further research and investigations are suggested based on the technological maturity, economic viability, and lack of proper knowledge of the combustion system for further improvement of the capture system.

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“…Therefore, the capture, storage, and utilization of CO 2 in coal-fired power plants have important practical significance for mitigating global warming [1][2][3]. The current CO 2 emission reduction technology routes of coal-fired power plants mainly are: integrated gas gasification combined cycle (IGCC) technology [4], oxygen-rich combustion system [5,6], chemical chain combustion technology [7,8], physical adsorption [9,10], and chemical absorption method [11]. For existing traditional coal-fired power plants, physical adsorption and chemical absorption methods are more practical methods because they do not require much change in the layout of the power plants.…”

Section: Introductionmentioning

confidence: 99%

Study on CO2 Capture Characteristics and Kinetics of Modified Potassium-Based Adsorbents

et al. 2020

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In this paper, a silica aerogel support was prepared by two-step sol–gel method, and the active component K2CO3 was supported on the support by wet loading to obtain a modified potassium-based CO2 adsorbent. As the influences of reaction conditions on the CO2 capture characteristics of modified potassium-based adsorbents, the reaction temperature (50 °C, 60 °C, 70 °C, 80 °C), water vapor concentration (10%, 15%, 20%), CO2 concentration (5%, 10%, 12.5%, 15%), and total gas flow rate (400 mL/min, 500 mL/min, 600 mL/min) were studied in a self-designed fixed-bed reactor. At the same time, the low-temperature nitrogen adsorption experiment, scanning electron microscope, and X-ray diffractometer were used to study the microscopic characteristics of modified potassium-based adsorbents before and after the reaction. The results show that the silica aerogel prepared by the two-step sol–gel method has an excellent microstructure, and its specific surface area and specific pore volume are as high as 838.9 m2/g and 0.85 cm3/g, respectively. The microstructure of K2CO3 loaded on the support is improved, which promotes the CO2 adsorption performance of potassium-based adsorbents. The adsorption of CO2 by potassium-based adsorbents can be better described by the Avrami fractional kinetic model and the modified Avrami fractional kinetic model, and it is a complex multi-path adsorption process, which is related to the adsorption site and activity. The optimal adsorption temperature, water vapor concentration, CO2 concentration, and total gas volume were 60 °C, 15%, 12.5%, and 500 mL/min, respectively.

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Pre‐Combustion Carbon Capture

Cited by 12 publications

References 19 publications

Electrochemical carbon dioxide capture to close the carbon cycle

Electrochemical carbon dioxide capture to close the carbon cycle

A Critical Review of CO2 Capture Technologies and Prospects for Clean Power Generation

Study on CO2 Capture Characteristics and Kinetics of Modified Potassium-Based Adsorbents

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