Carbon dioxide (CO2) absorption and interfacial mass transfer across vertically confined free liquid film-a numerical investigation

2017 ◽  
Vol 111 ◽  
pp. 46-56 ◽  
Author(s):  
Jianguang Hu ◽  
Xiaogang Yang ◽  
Jianguo Yu ◽  
Gance Dai
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Liquid Film ◽  
Numerical Investigation ◽  
Co2 Absorption ◽  
Interfacial Mass Transfer ◽  
Free Liquid Film ◽  
Carbon Dioxide Co2

scholarly journals Amine-based carbon dioxide absorption: evaluation of kinetic and mass transfer parameters

2018 ◽  
Vol 12 (4) ◽  
pp. 4088-4097
Author(s):  
S. Ma’mun ◽  
Hallvard F. Svendsen ◽  
I. M. Bendiyasa
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Atmospheric Pressure ◽  
Co2 Concentration ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Carbon Dioxide Absorption ◽  
Global Emission ◽  
Transfer Parameters ◽  
Carbon Dioxide Co2

Global emission of carbon dioxide (CO2), a major contributor to the climate change, has increased annually and it reached over 37 Gt in 2017. An effort to reduce the emission, therefore, needs to be conducted, e.g. post-combustion capture by use of amine-based absorption. The objective of this study is to evaluate the kinetic and mass transfer parameters in a CO2 absorption process using monoethanolamine (MEA), 2-(methylamino)ethanol (MMEA), and 2-(ethylamino)ethanol (EMEA) as absorbents. The experiments were conducted in a bubble reactor at atmospheric pressure and 40 °C with 10-vol% CO2 flowrate of 5 NL/men. The CO2 concentration leaving the reactor was measured by an IR CO2 analyzer. The results obtained from this experiment were the overall absorption rates consisting of both chemical reaction and mass transfer. Analysis result shows that the reaction between CO2 and amines takes place fast, therefore the mass transfer of CO2 from the gas into the liquid through the gas film would control the overall absorption rate.

scholarly journals A study on CO2 absorption using hybrid solvents in packed columns

2019 ◽  
Author(s):  
Ravinder Kumar ◽  
Mohammad Hossein Ahmadi ◽  
Dipen Kumar Rajak ◽  
Mohammad Alhuyi Nazari
Keyword(s):  
Carbon Dioxide ◽  
Co2 Capture ◽  
Power Plants ◽  
Large Scale ◽  
Carbon Dioxide Capture ◽  
Packed Column ◽  
Absorption Efficiency ◽  
Co2 Absorption ◽  
Process Industries ◽  
Carbon Dioxide Co2

Abstract Greenhouse gases emissions from large scale industries as well as gasoline based vehicles are mainly responsible for global warming since the 1980s. At present, it has triggered global efforts to reduce the level of GHG. The contribution of carbon dioxide (CO2) in polluting the environment is at a peak due to the excessive use of coal in power plants. So, serious attention is required to reduce the level of CO2 using advanced technologies. Carbon dioxide capture and storage may play an important role in this direction. In process industries, various carbon dioxide capture techniques can be used to reduce CO2 emissions. However, post-combustion carbon dioxide capture is on top priority. Nowadays the researcher is focusing their work on CO2 capture using hybrid solvent. This work highlights a review of carbon dioxide capture using various kind of hybrid solvent in a packed column. The various challenges for absorption efficiency enhancement and future direction are also discussed in the present work. It is concluded through the literature survey that hybrid solvent shows better efficiency in comparison to the aqueous solution used for CO2 capture.

scholarly journals Determining the carbon footprint for a new earthen-based finish

2019 ◽  
Vol 15 (1) ◽  
pp. 143-148 ◽  
Author(s):  
Yolanda G Aranda-Jimenez ◽  
Edgardo J Suarez-Dominguez
Keyword(s):  
Carbon Dioxide ◽  
Carbon Footprint ◽  
Organic Materials ◽  
Architecture Design ◽  
Co2 Absorption ◽  
A Value ◽  
Co2 Equivalent ◽  
Carbon Dioxide Co2

Abstract In the present work the carbon footprint for a material developed in the Faculty of Architecture, Design and Urbanism of the Autonomous University of Tamaulipas (UAT) constituted by argillaceous earth, aloe juice and fiber of ixtle with utility like the inner coating of walls in buildings was determined. The objective of this paper is the calculation of the contribution of carbon dioxide (CO2) by the plant, considering the stoichiometry of CO2 absorption accompanied by the determination at the laboratory level. It was found that the use of organic materials in mortar mixtures, when they are produced manually by the person who will use them, and that is common in cases of self-construction, can generate approximately −0.45 kg of CO2 equivalent for each kilogram of plant produced for the preparation of mixtures. In addition, the equivalent CO2 was calculated for the elaboration of a cubic meter of useful mixture as a wall covering obtaining a value below the equivalent 14 kg of CO2.

scholarly journals Synthesis and characterization of amine-impregnated silica gel for potential carbon dioxide (CO2) absorption

2019 ◽  
Vol 1349 ◽  
pp. 012100
Author(s):  
N F Mohamad ◽  
N H Abdul Rani ◽  
M Onn ◽  
S I Sayed Jamaludin ◽  
A S I Ahmad Shafiq ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Silica Gel ◽  
Synthesis And Characterization ◽  
Co2 Absorption ◽  
Carbon Dioxide Co2 ◽  
Potential Carbon

scholarly journals Pengaruh Tekanan Dan Tahap Kompresi Dalam Pemurnian Biogas Menjadi Biometana Dengan Absorpsi CO2 Menggunakan Air Bertekanan

2020 ◽  
Vol 8 (1) ◽  
pp. 1-5
Author(s):  
Anggit Raksajati ◽  
Tri Partono Adhi ◽  
Danu Ariono
Keyword(s):  
Carbon Dioxide ◽  
Ammonia Nitrogen ◽  
Co2 Absorption ◽  
Biogas Upgrading ◽  
Optimum Pressure ◽  
Compression Stage ◽  
Biogas Purification ◽  
Purification Unit ◽  
Palm Oil Mill ◽  
Carbon Dioxide Co2

Palm oil mill effluent (POME) from condensate stew, hydrocyclone water, and sludge separator contains organic carbon with a COD more than 40 g/L and a nitrogen content of about 0.2 and 0.5 g/L as ammonia nitrogen and total nitrogen. At present, the POME is converted into biogas using anaerobic ponds. Biogas produced contains 60% methane (CH4) and 40% carbon dioxide (CO2) and can be purified into biomethane through CO2 absorption using water. This study evaluates the optimum pressure and feed compression stage in biogas upgrading into biomethane. The results show the rate of circulation of water needed to separate CO2 from biogas feed decreases with increasing absorber pressure due to increased solubility of CO2 in water. Water circulation pumps and biogas compressor works increase due to the increase in pressure difference needed. The optimum pressure of the biogas biogas purification unit is within the range of 7-10 bar. At the same absorber pressure, the 1 stage feed compression unit is cheaper than that of 2 stages. However, the overall process with 1 compression stage might not be more economical than the 2-stage if consider the higher methane loss.

scholarly journals Above-ground carbon stock at Kamojang Regions, West Java, Indonesia

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
DWIKI DANANG KUNCORO ◽  
TEGUH HUSODO ◽  
JOKO KUSMORO ◽  
RANDI HENDRAWAN ◽  
SUROSO ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Storage ◽  
Carbon Stock ◽  
Sampling Method ◽  
Co2 Absorption ◽  
Destructive Sampling ◽  
West Java ◽  
Region Data ◽  
Carbon Dioxide Co2 ◽  
Non Destructive

Abstract. Kuncoro DD, Husodo T, Kusmoro J, Hendrawan R, Suroso, Afriyanti F, Megantara EN. 2020. Above-ground carbon stock at Kamojang Regions, West Java, Indonesia. Biodiversitas 21: 1749-1754. Kamojang is one of the regions that have the potential for carbon dioxide (CO2) sequestration and carbon storage for the southern side of West Java Province, Indonesia. The existence of vegetation as a provider of ecological services in the form of carbon dioxide (CO2) absorption and carbon storage certainly has a very important role, either in living conditions (biomass) or dead conditions (necromass). The aims of this study are to determine the total amount of above-ground carbon stock and determine the type of land-use that has the greatest carbon storage potential in the Kamojang region. Data collection in this research combines destructive and non-destructive methods. The measurement of biomass was carried out by the non-destructive sampling method for the category of sapling, poles, trees and necromass and the destructive sampling method for the category of undergrowth and litter. The results showed total above-ground carbon stored in Kamojang area is 4,995.75 t C with the largest potential value of carbon stock in the pine production forest of 163.79 t C/ha.

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