Shape selective xylene production is very important in the polymer industry because of its extensive use as raw material for monomer preparation. The acidity associated with the Lewis and Broensted centers present in the pillars interlayered clay and its textural properties allows good catalytic activity and shape selectivity toward p-xylene production. So, in the present study, ultrasonic and ...

This article compares performance of selective catalytic reduction (SCR) and non-catalytic (SNCR) applied on the same pilot unit, a 500 kW fluidized bed boiler burning Czech lignite. Correlation denitrification efficiency normalized stoichiometric ratio (NSR) is investigated. The fundamental principle SCR SNCR similar with reaction scheme. difference in use catalyst that lowers activation energ...

The xerogel samples were prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS) by the sol-gel method. In this investigation, a new molar ratio of H2O/TEOS was determined to be 11.7. Also, the necessary amounts of tri-hydrated copper nitrate and penta-hydrated copper sulfate were added to the solution in such a manner that the concentration of the copper oxide in final solut...

In recent years, studies on denitration by applying biomass reburning method has drawn the attention of many researchers due to the characteristics of low sulfur and nitrogen content, high volatile, high ash focal activity, zero CO2 net emissions, etc. Based on Chemkin software and selective non-catalytic reduction (SNCR) denitration chemical kinetic model, this paper conducted SNCR denitration...