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.
To clarify the action mechanisms of microwave field with peroxyacetic acid in the process of sulfur removal from coal, this study was carried out on the molecular level and diphenyl sulfide was selected as the sulfur model compound of coal. Its oxidation reaction path was determined utilizing XANES and GC/MS. The transmission reflection method was adopted to analyze the dielectric property of the...
The molecular structure model of the Shengli lignite was determined via TG-GC/MS for the analysis of the pyrolysis products’ structure and contents, in combination with ultimate analysis and FTIR for the determination of its structure parameters. Then the model was constructed by hand referring to references, optimized and revised on the basis of quantum chemistry by semi-empirical and the second...
To evaluate the microwave response characteristic of different organic sulfur functional groups in coal, the dielectric properties of sulfur-containing and sulfur-free model compounds and mixtures of these compounds with pure coal were determined by a vector network analyzer (100MHz–6.5GHz). Results showed that for model compounds of similar structure, the dielectric properties of sulfur-containing...
A modified two-stage quartz reactor was designed to further investigate the mechanism of sulfur transformation based on the interactions between volatiles and char during brown coal pyrolysis at different temperatures. With the two-stage reactor, the active volatiles generated from the coal fast pyrolysis can be in direct contact with the nascent char produced from the coal temperature-programmed...
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.