An improved low and high-temperature dimethyl ether kinetic model for the combustion atmospheres with high CO2 concentration

2022 ◽  
Vol 238 ◽  
pp. 111922
Author(s):  
Lingfeng Dai ◽  
Lixin Lu ◽  
Chun Zou ◽  
Qianjin Lin ◽  
Wenxiang Xia ◽  
...  
Keyword(s):  
High Temperature ◽  
Kinetic Model ◽  
Dimethyl Ether ◽  
Co2 Concentration ◽  
High Co2 ◽  
High Co2 Concentration

Experimental and kinetic study of NO-reburning by syngas under high CO2 concentration in a jet stirred reactor

Fuel ◽  
2021 ◽  
Vol 304 ◽  
pp. 121403
Author(s):  
Fan Hu ◽  
Pengfei Li ◽  
Wenhao Li ◽  
Cuijiao Ding ◽  
Junjun Guo ◽  
...  
Keyword(s):  
Kinetic Study ◽  
Co2 Concentration ◽  
High Co2 ◽  
Stirred Reactor ◽  
High Co2 Concentration

scholarly journals Development of experimental structure and influence of high CO2 concentration in maize cro

2012 ◽  
Vol 32 (2) ◽  
pp. 306-314 ◽  
Author(s):  
João B. Lopes da Silva ◽  
Paulo A. Ferreira ◽  
Eduardo G. Pereira ◽  
Luís C. Costa ◽  
Glauco V. Miranda
Keyword(s):  
Experimental Design ◽  
Dry Matter ◽  
Co2 Concentration ◽  
Dry Mass ◽  
C4 Plant ◽  
Active Radiation ◽  
High Co2 ◽  
Photosynthetic Rates ◽  
High Co2 Concentration ◽  
Experimental Structure

Maize is a C4 plant that shows few or no response to high [CO2]. Thus, this study aimed to analyze the photosynthetic rate and yield of maize under high [CO2] and develop open-top chambers (OTC) to create an atmosphere enriched with CO2. The experiment was conducted between October 2008 and March 2009. The OTCs were developed in modular scheme. Measurement of photosynthetic rates, transpiration, stomata conductance, grain yield and dry matter were performed. The experimental design was randomized blocks with four replications and three treatments: P1 - plants grown in OTC with 700 ppm [CO2], P2 - plants grown in OTC with environmental [CO2], and P3 - control, cultivated in open field. The results were analyzed by ANOVA and Tukey's test (Pr< 0.05). The chambers can reduce by 25% the photosynthetically active radiation and increase the air and leaf temperatures. Plants under high [CO2] (P1) showed the highest photosynthetic rates and the lowest stomata conductance and transpiration. The total weight of grains (g) and dry mass of shoots (g) showed no increases for P1, despite their higher photosynthetic rates.

scholarly journals Simulating the Use of a Smelter Off-Gas in the Precipitation Stage of the Pedersen Process

2021 ◽  
Vol 5 (1) ◽  
pp. 53
Author(s):  
Andriani Manataki ◽  
James M. Mwase ◽  
Casper van der Eijk
Keyword(s):  
Production Process ◽  
Experimental Work ◽  
Co2 Concentration ◽  
Hydrometallurgical Process ◽  
Alumina Production ◽  
High Co2 ◽  
Aluminum Hydroxides ◽  
High Co2 Concentration

The Pedersen process is an alumina production process, which combines pyrometallurgical and hydrometallurgical methods. In the pyrometallurgical stage, limestone is calcined and CO2 is generated. This off-gas can be captured with a high CO2 concentration. At the end of the hydrometallurgical process, aluminum hydroxides, like bayerite, are precipitated using CO2. In this paper, experimental work on precipitation of aluminum hydroxides through the addition of a mixture of CO2, O2 and N2 is presented. The parameters varied, as were the percentages of each gas and the temperature. The indicators measured were the time until the beginning of precipitation and the time that the precipitation lasts. These tests simulate the use of a smelter furnace off-gas in the precipitation stage of the Pedersen process and have shown promising results.

Reburning study of superfine pulverized coal in high CO2 concentration

Fuel ◽  
2018 ◽  
Vol 220 ◽  
pp. 25-31 ◽  
Author(s):  
Junfang Ma ◽  
Jun Shen ◽  
Jiaxun Liu ◽  
Yang Ma ◽  
Xiumin Jiang
Keyword(s):  
Co2 Concentration ◽  
Pulverized Coal ◽  
High Co2 ◽  
High Co2 Concentration

scholarly journals Effects of High CO2 Concentration on Browning Injury and Phenolic Metabolism in Loquat Fruits.

1999 ◽  
Vol 68 (2) ◽  
pp. 275-282 ◽  
Author(s):  
Chang Kui Ding ◽  
Kazuo Chachin ◽  
Yoshinori Ueda ◽  
Yoshihiro Imahori ◽  
Hiroshi Kurooka
Keyword(s):  
Co2 Concentration ◽  
Phenolic Metabolism ◽  
High Co2 ◽  
High Co2 Concentration
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