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.
Temperature programmed combustion of a Chinese brown coal before and after demineralization was carried out in a tubular quartz fixed bed reactor. The evolution of NOx during coal combustion has been investigated with an aim of figuring out the influence of indigenous mineral matter in coal as well as the loaded alkali and alkaline earth metals (Na, Ca). The results show that the mineral matter in...
The catalytic effects of Na, Ca and Fe on the formation of HCN and NH 3 during pyrolysis of nitrogen-containing model chars and on the emission of NO x during the char combustion have been investigated in a fixed bed reactor. The results show that fuel-type nitrogen is mainly retained in char under the pyrolysis conditions (~900 o C). The presence of Na favors the transformation...
NO-char reaction and char combustion in the presence and absence of mineral matter were studied in a quartz fixed bed reactor. Eight chars were prepared in a fluidized bed at 950 o C from four Chinese coals that were directly carbonized without pretreatment or were first deashed before carbonization. The decomposition of NO over these coal-derived chars was studied in Ar, CO/Ar and O 2...
The catalytic reduction of NO over coal-derived chars and the catalytic effect of Na-Fe on NO emission during char combustion were investigated in a quartz fixed bed reactor. The catalytic characteristics of Na and Fe in the NO-char reaction were studied and compared in detail. The results show that the catalytic activity of Na depends greatly on its loading amount, while the activity of Fe is more...
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.