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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Progress in Chemical and Biochemical Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Carbon Dioxide,Titanium dioxide nanoparticle,Solubility,Diethyl Ethanolamine
- چکیده:
- چکیده انگلیسی: Fossil fuels are the main source of CO2 emissions into the atmosphere, which are sources of air pollutants. Environmental research has confirmed that atmospheric CO2 concentration has risen from 280 ppm in 1800 to 358 ppm in 1994 (an increase of 27.86%). Russia, the United States, China, the rest of the Asian countries, Latin American countries, and African countries accounted for 27, 22, 11, 13, 4, and 3% of the total global CO2 production, respectively. Various processes based on hydrogen sulfide and other acidic gases such as carbon dioxide, carbon disulfide, mercaptans, and carbonyl sulfide have been introduced for natural gas sweetening. One of these processes involves the use of solvents. In the present research, a device that measures solubility of gases in liquids was employed to measure solubility of CO2 in solvent DEEA in the presence of TiO2 at different solvent concentrations (10, 15, 20% w/w), various pressures (5, 10, and 15bar) and different TiO2 concentrations (0.05 and 0.1% w/w) at ambient temperature. Results showed that solubility increased from 25.8 to 42.4% v/v at constant pressure and without the presence of a nanoparticle in the absence of TiO2 at solvent concentrations ranging from 10 to 15% w/w. At a constant concentration of the solvent (15% w/w), solubility increased from 31.8 to 36.7% when the pressure was raised from 10 to 15 bar. Moreover, solubility increased from 32.7 to 36.7% v/v at constant solvent concentration (15% w/w) and pressure (15bar) when TiO2 concentration was raised.
- انتشار مقاله: 30-10-1398
- نویسندگان: Haniyeh Shamsin Beyranvand,Masoomeh Mirzaei Ghaleh Ghobadi,Hamid Sarlak
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of New Chemistry
- نوع مقاله: Journal Article
- کلمات کلیدی: Carbon Dioxide,Solubility,Calcium Carbonate Nanoparticle,Diethyl Ethanolamine
- چکیده:
- چکیده انگلیسی: Various processes have been presented to sweeten natural gas so far. In this study carbon dioxide solubility in diethyl ethanolamine (DEEA) solvent with and without the presence of calcium carbonate nanoparticles at concentrations of 10, 15 and 20 wt% solvent in the pressure range of 5, 10 and 15 bar and titanium oxide, respectively. At concentrations of 0.05 and 0.1 wt% were measured at ambient temperature. The results show that at constant pressure (10 bar) and without the presence of nanoparticles, the solubility for the concentration of 10 to 15 wt% of the solvent increases from 25.8 v/v* to 42.4 v/v*. Increasing the pressure also increases the solubility. For a constant concentration (15 wt% of the solvent), the solubility increases from 31.6 v/v* to 36.7 v/v* by increasing the pressure from 10 to 15 times. However, increasing the concentration of nanoparticles has little effect on increasing solubility. So that for the constant concentration of solvent (10%) and constant pressure (15 bar) the solubility of carbon dioxide for the nanoparticles increases from 0 to 0.1 wt% from 32.6 v/v* to 36.7 v/v*.
- انتشار مقاله: 27-10-1398
- نویسندگان: Sheida Hosseini,Hossein Salmani,Hamid Sarlak
- مشاهده