Catalyst for Utilization of Methane in Selective Catalytic Reduction of NOx, Task 2.6 PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Catalyst for Utilization of Methane in Selective Catalytic Reduction of NOx, Task 2.6 PDF full book. Access full book title Catalyst for Utilization of Methane in Selective Catalytic Reduction of NOx, Task 2.6 by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Get Book Here
Book Description
Author: Xiaoyan She
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages :
Get Book Here
Book Description
Author: Masaru Ogura
Publisher:
ISBN:
Category :
Languages : en
Pages : 171
Get Book Here
Book Description
Author: Acacio Miguel Nobre Mendes
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
The selective catalytic reduction of nitrogen oxides, in lean-conditions, using methane as reductant (NOx CH4-SCR) over PdCe/zeolite-based catalysts was considered in this work. Preparation method for palladium introduction, palladium/cerium loadings and metal introduction order were optimised for a formulation considering MOR zeolite as the catalytic support. The effect of different test conditions, namely [CH4]/[NO] ratio and water presence in the reaction mixture was assessed. The effect of the zeolite support in the stabilisation of Pd/Ce species was also evaluated by preparing a similar PdCe-BEA catalyst to the optimised PdCe-MOR catalyst, considering the same metal loadings and preparation methods. Both catalysts exhibited different metal species and different catalytic performances. Structure-reactivity relationships were drawn from the comparison of several characterisation techniques and catalytic test results for both catalysts. A synergic effect resulting from the use of both catalysts in a single bed application (mixed-bed and dual-bed configuration) is reported. An innovative thermal treatment applied to PdCe-MOR catalyst during its preparation is reported. Under certain conditions, this treatment results in the enhancement of the catalytic performance, namely, in higher NOx conversion into N2 and CH4 selectivity towards NOx SCR. Structured catalysts were prepared by washcoating of PdCe-MOR onto cordierite monoliths with different geometry (cpsi). Preparation parameters were evaluated through characterisation techniques and the catalytic performance was assessed in a synthetic gas bench plant.
Author: Xiaoyan She
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 232
Get Book Here
Book Description
Author: Mark Douglas Fokema
Publisher:
ISBN:
Category :
Languages : en
Pages : 208
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Get Book Here
Book Description
Significant work has been done by the investigators on the cerium oxide-copper oxide based sorbent/catalysts for the combined removal of sulfur and nitrogen oxides from the flue gases of stationary sources. A relatively wide temperature window was established for the use of alumina-supported cerium oxide-copper oxide mixtures as regenerable sorbents for SO2 removal. Evaluation of these sorbents as catalysts for the selective reduction of NO(subscript x) gave promising results with methane. Since the replacement of ammonia by methane is commercially very attractive, in this project, it was planned to investigate the effect of promoters on the activity and selectivity of copper oxide/cerium oxide-based catalysts and to obtain data on the reaction mechanism for the SCR with methane. The investigation of the reaction mechanism will help in the selection of promoters to improve the catalytic activity and selectivity of the sorbents in the SCR with methane. This will result in new catalyst formulations. The last component of the project involves our industrial partner TDA Research, and the objective is to evaluate long- term stability and durability of the prepared sorbent/catalysts. In the second year of the project, the catalysts were investigated for their SCR activity with methane in a microreactor setup and also, by the temperature-programmed desorption (TPD) technique. The results from the SCR experiments indicated that manganese is a more effective promoter than rhodium on the supported copper oxide-ceria catalysts under study; the effectiveness of the promoter increases with the increase in Ce/Cu ratio. The TPD profiles of the unpromoted catalyst (Cu/Ce=3) is different than those promoted with 0.1% rhodium. In the current reporting period, the screening of the promoted catalysts were completed, sufficient amount of the selected catalysts were prepared and delivered to TDA for long term deactivation testing.
Author: Chorchat Soonthornpalin
Publisher:
ISBN: 9789742736071
Category : Nitrogen oxides
Languages : en
Pages : 136
Get Book Here
Book Description
