The Carbon Dioxide Absorption Capacity of Amsorb® is Half That of Soda Lime

Absorbents used in closed and semi-closed circuit environments play a key role in preventing carbon dioxide poisoning. Here we present an analysis of one of the most common carbon dioxide absorbents—soda lime. In the first step, we analyzed the composition of fresh and used samples. For this purpose, volumetric and photometric analyses were introduced. Thermal properties and decomposition patterns were also studied using thermogravimetric and X-ray powder diffraction (PXRD) analyses. We also investigated the kinetics of carbon dioxide absorption under conditions imitating a closed-circuit environment.

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Carbon Dioxide Absorption from Anæsthetic Atmospheres

Proceedings of the Royal Society of Medicine ◽

10.1177/003591573603000102 ◽

1936 ◽

Vol 30 (1) ◽

pp. 11-22 ◽

Cited By ~ 12

Author(s):

Ralph M. Waters

Keyword(s):

Carbon Dioxide ◽

Soda Lime ◽

Face Mask ◽

Maximum Efficiency ◽

High Grade ◽

Chemical Analyses ◽

Carbon Dioxide Absorption ◽

Physical Experiments

A safe and practical technique for the application of carbon dioxide absorption from anæsthetic atmospheres is described. It has been found satisfactory in over 20,000 administrations over a period of fifteen years. High-grade soda lime is utilized as the chemical absorbent. Granules are placed in a canister between face mask, and breathing bag. The canister is carefully checked for efficiency by both chemical analyses and physical experiments. Its size, shape and arrangement is shown to be important for safety and maximum efficiency. Detailed techniques are described for the use of various agents. Advantages of carbon dioxide absorption are set forth. The “Apnœa” suggested by Guedel is described under the term “Controlled Respiration” and attention is called to certain of its advantages.

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Synthesis of Na-Doped Lithium Metatitanate and Its Absorption for Carbon Dioxide

Journal of Nanomaterials ◽

10.1155/2014/157269 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Liu Zhirong ◽

Zhang Huan ◽

Wang Yun ◽

Zhan Xinxing

Keyword(s):

Carbon Dioxide ◽

Solid State Reaction Method ◽

Absorption Capacity ◽

Absorption Kinetics ◽

X Ray Diffraction ◽

Carbon Dioxide Absorption ◽

Reaction Method ◽

X Ray ◽

Xrd Patterns ◽

The Relationship

Na-doped lithium metatitanate (Na-doped Li2TiO3) absorbent was doped with Na2CO3and lithium metatitanate (Li2TiO3) was prepared by a solid-state reaction method from mixture of TiO2and Li2CO3. The Na-doped lithium metatitanate was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) and surface area. Carbon dioxide absorption on Na-doped lithium metatitanate was investigated using TG-DTA. The results reveal an increase of the CO2absorption capacity of the Na-doped materials with respect to pure Li2TiO3. XRD patterns of the doped samples suggest a limited substitution of Li by Na atoms within the Li2TiO3structure. The results of experimental and modeling work were summarized to better understand the relationship between the sorbent microstructure and carbon dioxide absorption kinetics.

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Review on Carbon Dioxide Absorption by Choline Chloride/Urea Deep Eutectic Solvents

Advances in Chemistry ◽

10.1155/2018/2675659 ◽

2018 ◽

Vol 2018 ◽

pp. 1-6 ◽

Cited By ~ 15

Author(s):

Rima J. Isaifan ◽

Abdukarem Amhamed

Keyword(s):

Carbon Dioxide ◽

Hydrogen Bond ◽

Ionic Liquids ◽

Choline Chloride ◽

Deep Eutectic Solvents ◽

Absorption Capacity ◽

Carbon Dioxide Absorption ◽

Hydrogen Bond Donor ◽

Separation Processes ◽

Hydrogen Bond Acceptor

In the recent past few years, deep eutectic solvents (DESs) were developed sharing similar characteristics to ionic liquids but with more advantageous features related to preparation cost, environmental impact, and efficiency for gas separation processes. Amongst many combinations of DES solvents that have been prepared, reline (choline chloride as the hydrogen bond acceptor mixed with urea as the hydrogen bond donor) was the first DES synthesized and is still the one with the lowest melting point. Choline chloride/urea DES has proven to be a promising solvent as an efficient medium for carbon dioxide capture when compared with amine alone or ionic liquids under the same conditions. This review sheds light on the preparation method, physical and chemical characteristics, and the CO2 absorption capacity of choline chloride/urea DES under different temperatures and pressures reported up to date.

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A comparative study of carbon dioxide absorption capacity of seven urban forest plant species of Banda Aceh, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d201134 ◽

2019 ◽

Vol 20 (11) ◽

Author(s):

Malahayati Daud ◽

Betty Mauliya Bustam ◽

BASTIAN ARIFIN

Keyword(s):

Carbon Dioxide ◽

Global Warming ◽

Linear Regression ◽

Comparative Study ◽

Open Space ◽

Urban Forest ◽

Absorption Capacity ◽

Carbon Dioxide Absorption ◽

Forest Plant Species ◽

Banda Aceh

Abstract. Daud M, Bustam BM, Arifin B. 2019. A comparative study of carbon dioxide absorption capacity of seven urban forest plant species of Banda Aceh, Indonesia. Biodiversitas 20: 3372-3379. Global warming has been a major issue affecting all parts of the world in recent years. One method of reducing the impact of global warming is through supporting the green open space. The city government of Banda Aceh, Indonesia has targetted as much as 30% of its area to the formation of green open space. The BNI urban forest is one example of the green open spaces in Banda Aceh. This research was conducted to know the carbon dioxide absorption capacity in seven selected tree species found in the urban forest. The method that has been applied was the explorative survey method with purposive sampling. The data were analyzed using linear regression and correlation analysis. The results showed that the highest ability of carbon dioxide absorption per leaf per hour was found in the Terminalia catappa (0.511 g/leaf/hour) and the lowest was found in the Calophyllum inophyllum (0.056 g/leaf/hour). While the highest carbon dioxide absorption per tree per hour was found in Pterocarpus indicus (4,642,293 g/tree/hour) and the lowest was found in Calophyllum inophyllum (162,640 g/tree/hour). The results of linear regression analysis showed that there was no strong correlation and no significant effect between leaf surface area and mass of carbohydrate, to capacity of carbon dioxide absorption in urban forest plants.

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