نتایج جستجو برای: selective catalytic reduction
تعداد نتایج: 745581 فیلتر نتایج به سال:
Characterization of the urea-water spray impingement in diesel selective catalytic reduction systems
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...
Determination of metal oxidation state under relevant working conditions is crucial to understand catalytic behaviour. The reduction behaviour of Pt and Re was evaluated simultaneously as a function of support and solvent in a pressurized reactor (autoclave). The bimetallic catalysts are used in selective hydrogenation of carboxylic acids and amides. Gas phase reduction reduced the metals more ...
Hydrocarbon (HC) assisted selective catalytic reduction (SCR) is an appealing technology for NOx reduction in oxygen excess. In particular, a catalyst formulation with silver supported on alumina (Ag/Al2O3) has been measured to have high activity for this reaction [1,2]. Although numerous experimental studies have clarified issues concerning the Ag/Al2O3 catalyst, the nature of the active phase...
Among the different factors contributing to a good chemical manufacturing process, the process efficiency and specifically volume–time output in terms of reactor capacity and cycle time, respectively, have been given the largest weight – among the conversion costs, with material cost being the second [1]. Raw materials or intermediates with a higher oxidation state than the target products are ...
Background and aims: Air pollution reduction is important in health being of people and environment. Applying of an effective and efficient strategy is key consideration in facing with environmental challenges of management and control of air pollution. Recently, the main effort of environmental researchers is finding low cost and effective methods to control of environmental pollutants. Po...
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