Author: Masaru Ogura
Publisher:
ISBN:
Category :
Languages : en
Pages : 171
Book Description
Selective Catalytic Reduction of Nitric Oxide with Methane on Bifunctional Zeolite Catalysts
Author: Masaru Ogura
Publisher:
ISBN:
Category :
Languages : en
Pages : 171
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 171
Book Description
Selective Catalytic Reduction of Nitric Oxide by Ammonia Over Iron Exchanged Y Zeolites
Author: Michael Dimitrios Amiridis
Publisher:
ISBN:
Category :
Languages : en
Pages : 684
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 684
Book Description
Selective Catalytic Reduction of Nitric Oxide by Methane
Author: Ileana D. Lick
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 2
Book Description
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 2
Book Description
Selective Catalytic Reduction of NOx
Author: Oliver Kröcher
Publisher: MDPI
ISBN: 3038973645
Category : Science
Languages : en
Pages : 281
Book Description
This book is a printed edition of the Special Issue "Selective Catalytic Reduction of NOx" that was published in Catalysts
Publisher: MDPI
ISBN: 3038973645
Category : Science
Languages : en
Pages : 281
Book Description
This book is a printed edition of the Special Issue "Selective Catalytic Reduction of NOx" that was published in Catalysts
In Situ Mössbauer Spectroscopic Studies of Iron-exchanged Y-zeolite Catalysts for the Selective Catalytic Reduction (with Ammonia) and Direct Decomposition of Nitric Oxide
Author: Ralf Schmidt
Publisher:
ISBN:
Category :
Languages : en
Pages : 460
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 460
Book Description
Sanna och falska christnas kännemärken, förnämligast af deras tal, i anledning af Christi utlåtelse, Matth. 12:34, 35. Där hjertat med fullt är, däraf talar munnen. En god människa bär godt fram af hjertans goda fatabur; och en ond människa
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Nitric Oxide Selective Catalytic Reduction with Methane
Author: Enrique Aceves
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
Book Description
Selective Catalytic Reduction (SCR) of Nitric Oxide with Ammonia Using Cu-ZSM-5 and Va-based Honeycomb Monolith Catalysts
Author: Saurabh Gupta
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In this work, the steady-state performance of zeolite-based (Cu-ZSM-5) and vanadium-based honeycomb monolith catalysts was investigated in the selective catalytic reduction process (SCR) for NO removal using NH3. The aim was to delineate the effect of various parameters including pretreatment of the catalyst sample with H2, NH3-to-NO ratio, inlet oxygen concentration, and space velocity. The concentrations of the species (e.g. NO, NH3, and others) were determined using a Fourier Transform Infrared (FTIR) spectrometer. The temperature was varied from ambient (25 C) to 500 C. The investigation showed that all of the above parameters (except pre-treatment with H2) significantly affected the peak NO reduction, the temperature at which peak NO reduction occurred, and residual ammonia left at higher temperatures (also known as 'NH3 slip'). Depending upon the particular values of the parameters, a peak NO reduction of around 90% was obtained for both the catalysts. However, an accompanied generation of N2O and NO2 species was observed as well, being much higher for the vanadium-based catalyst than for the Cu-ZSM-5 catalyst. For both catalysts, the peak NO reduction decreased with an increase in space velocity, and did not change significantly with an increase in oxygen concentration. The temperatures at which peak NO reduction and complete NH3 removal occurred increased with an increase in space velocity but decreased with an increase in oxygen concentration. The presence of more ammonia at the inlet (i.e. higher NH3-to-NO ratio) improved the peak NO reduction but simultaneously resulted in an increase in residual ammonia. Pretreatment of the catalyst sample with H2 (performed only for the Cu-ZSM-5 catalyst) did not produce any perceivable difference in any of the results for the conditions of these experiments.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
In this work, the steady-state performance of zeolite-based (Cu-ZSM-5) and vanadium-based honeycomb monolith catalysts was investigated in the selective catalytic reduction process (SCR) for NO removal using NH3. The aim was to delineate the effect of various parameters including pretreatment of the catalyst sample with H2, NH3-to-NO ratio, inlet oxygen concentration, and space velocity. The concentrations of the species (e.g. NO, NH3, and others) were determined using a Fourier Transform Infrared (FTIR) spectrometer. The temperature was varied from ambient (25 C) to 500 C. The investigation showed that all of the above parameters (except pre-treatment with H2) significantly affected the peak NO reduction, the temperature at which peak NO reduction occurred, and residual ammonia left at higher temperatures (also known as 'NH3 slip'). Depending upon the particular values of the parameters, a peak NO reduction of around 90% was obtained for both the catalysts. However, an accompanied generation of N2O and NO2 species was observed as well, being much higher for the vanadium-based catalyst than for the Cu-ZSM-5 catalyst. For both catalysts, the peak NO reduction decreased with an increase in space velocity, and did not change significantly with an increase in oxygen concentration. The temperatures at which peak NO reduction and complete NH3 removal occurred increased with an increase in space velocity but decreased with an increase in oxygen concentration. The presence of more ammonia at the inlet (i.e. higher NH3-to-NO ratio) improved the peak NO reduction but simultaneously resulted in an increase in residual ammonia. Pretreatment of the catalyst sample with H2 (performed only for the Cu-ZSM-5 catalyst) did not produce any perceivable difference in any of the results for the conditions of these experiments.
Direct Catalytic Decomposition of Nitric Oxide
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
This project will investigate a suitable catalyst system for the direct NO decomposition, for post-combustion NO. control. The proposed process will not use a reductant, such as ammonia in case of Selective Catalytic Reduction (SCR) process for catalytic reduction of NO(subscript x) to nitrogen. This is a simplified process basically involving passing the flue gas through a catalytic converter, thus avoiding problems generally associated with the commercial Selective Catalytic Reduction (SCR) process, namely high operating cost, ammonia slip, and potential N20 emissions. A brief description of the proposed work is as follows: Catalysts will be prepared by incorporating metal cations into zeolite supports according to ion exchange procedures widely used in preparation of metal/zeolite catalysts. Zeolites will be modified to improve catalytic activity, by blocking ion exchange sites in the small pores of zeolites with promoter cations of high valence. The catalysts of primary interest include copper (Cu), palladium (Pd), platinum (Pt), silver (Ag), and nickel (Ni) exchanged zeolites.
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
This project will investigate a suitable catalyst system for the direct NO decomposition, for post-combustion NO. control. The proposed process will not use a reductant, such as ammonia in case of Selective Catalytic Reduction (SCR) process for catalytic reduction of NO(subscript x) to nitrogen. This is a simplified process basically involving passing the flue gas through a catalytic converter, thus avoiding problems generally associated with the commercial Selective Catalytic Reduction (SCR) process, namely high operating cost, ammonia slip, and potential N20 emissions. A brief description of the proposed work is as follows: Catalysts will be prepared by incorporating metal cations into zeolite supports according to ion exchange procedures widely used in preparation of metal/zeolite catalysts. Zeolites will be modified to improve catalytic activity, by blocking ion exchange sites in the small pores of zeolites with promoter cations of high valence. The catalysts of primary interest include copper (Cu), palladium (Pd), platinum (Pt), silver (Ag), and nickel (Ni) exchanged zeolites.
Superior Catalysts for Selective Catalytic Reduction of Nitric Oxide
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description