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.
Chemical Percolation Devolatilization (CPD) theory was applied to investigate the devolatilization performance of asphalt. On the basis of the original CPD model, algebraic approaches for two chemical structure parameters (i.e., initial intact bridge and char bridge fractions) were modified with the consideration of the structure features of asphalt sample. The 13C NMR analysis data of the sample...
Thermal plasma technique is proposed as a potential approach to pyrolyze asphaltenes to useful chemicals at ultrahigh temperature. Thermal plasma pyrolysis experiments show that acetylene is the major gaseous product with concentration up to 45wt.%, together with some hydrogen and methane as well as the solids residue as by-products. To predict such a millisecond process, a particle-scale heat transfer...
Experiments were carried out in a drop tube furnace and a lab-scale plasma reactor to investigate the effects of coal properties, particle ultimate temperature and heating rate (i.e., 10 −1 to 10 1 K/s for slow pyrolysis, 10 2 to 10 4 K/s for fast pyrolysis and 10 4 to 10 6 K/s for rapid plasma pyrolysis processes) on coal devolatilization performances...
The bimetallic Ni–Fe catalysts used in CO total-methanation reaction were prepared by the impregnation method on γ-Al 2 O 3 support for the production of substitute natural gas (SNG). The catalysts were characterized by N 2 physisorption measurements, field-emission scanning electron microscopy (FE-SEM), and H 2 temperature-programmed reduction (H 2 -TPR). The...
Methanation reaction from syngas to synthetic natural gas (SNG) has been successfully implemented over Ni catalyst in a micro-channel reactor with high conversion and selectivity in milliseconds contact time. A new method called improved thermal spray to manufacture the metal-ceramics complex substrate as catalyst support was presented. The substrate demonstrated dual functions, i.e., the superior...
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.