The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
How to remove the sulfone species formed in oxidative desulfurization (ODS) of middle distillates through an efficient method is crucial in a successful ODS process. In this study, the solubility of dibenzothiophene (DBT) sulfone in different hydrocarbon streams was assessed and investigated in detail, and the adsorptive removal of DBT-sulfone dissolved in a model hydrocarbon stream on activated carbon...
Understanding the nature of CO2 adsorption in porous materials is important to developing the next generation high performance adsorbents for CO2 capture. The mechanism of CO2 adsorption in a typical metal organic framework (MOF) material, named Mg/DOBDC (DOBDC=1,4-dioxido-2,5-benzenedicarboxylate), was investigated by experiments and theoretical calculations. Needle-shaped Mg/DOBDC crystals were...
In this work, a method to simultaneously remove CO 2 /HCl of carbide slag in adsorption/desorption cycles was proposed. The effects of cycle number, adsorption temperature, desorption temperature, HCl fraction and sorbent particle size on cyclic CO 2 /HCl adsorption behavior of carbide slag in the adsorption/desorption cycles were investigated. The main products after CO 2 ...
Porous carbons for CO2 capture at low pressures were prepared by KOH activation of rice husk char. Low activation temperature (640–710°C) and small KOH/char ratio (1:1) favored the increase in low-pressure CO2 uptake. The CO2 uptakes at 0.1bar (0°C) reached 2.11mmol/g, which were probably the highest value ever reported for porous carbons prepared from lignocellulosic biomass. The high CO2 uptakes...
The release of harmful gases during the combustion of coal due to the presence of ash and sulfur, as a coal associated impurities, has negative effects on the environment as well as on the efficiency of power plants. Removal of ash and sulfur from coal is one of the crucial issues that attract researchers’ attention. Several separation techniques were tested for ash and sulfur removal from coal. Bioseparation...
The influence of an enhanced amount of nitrogen functionalities in activated carbon (AC) upon the adsorption of phenol from water was studied. The ACs were prepared from polyacrylonitrile (PAN) and a mixture of PAN and coal-tar pitch (CTP) by a process of carbonization followed by activation with steam. Because AC produced from a mixture of polyethylene terephthalate (PET) and CTP (1:1w/w) has a high...
The production of ethyl ester was investigated using a new reaction system consisting of a reactor coupled to an adsorption column. The adsorption system was used to shift the equilibrium toward ethyl ester production by removing the water from commercial ethanol and the water produced during the esterification reaction. A condenser placed above the adsorption column was responsible to condensate...
Several fly ash samples were collected and their physico-chemical properties were characterised using N 2 adsorption, XRD, SEM, and pH titration. These fly ash samples were applied as low-cost adsorbents for removal of methylene blue and humic acid from aqueous solution. It is found that the adsorption has a close relationship with surface area and pore volume. Higher surface area and pore...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.