Hydrorefining naphtha cuts over GKD-5N zeolitic catalyst

1997 ◽  
Vol 33 (1) ◽  
pp. 9-12
Author(s):  
R. R. Aliev ◽  
N. A. Batyrov ◽  
A. K. Zamanov
Keyword(s):  
Zeolitic Catalyst

Kinetics of oxidative acetoxylation of propylene on palladium-copper zeolitic catalyst

1983 ◽  
Vol 32 (12) ◽  
pp. 2409-2413
Author(s):  
Kh. M. Minachev ◽  
O. M. Nefedov ◽  
V. V. Kharlamov ◽  
S. Yu. Panov ◽  
A. M. Shkitov ◽  
...  
Keyword(s):  
Zeolitic Catalyst ◽  
Kinetics Of ◽  
Oxidative Acetoxylation

Alkylation of 3-Methylthiophene with 2-Methyl-2-butene over a Zeolitic Catalyst

2004 ◽  
Vol 18 (6) ◽  
pp. 1806-1813 ◽  
Author(s):  
Virginie Bellière ◽  
Christophe Geantet ◽  
Michel Vrinat ◽  
Younès Ben-Taârit ◽  
Yuji Yoshimura
Keyword(s):  
Zeolitic Catalyst

ChemInform Abstract: EVALUATION OF A NEW ZEOLITIC CATALYST FOR NOX REDUCTION WITH AMMONIA

1980 ◽  
Vol 11 (42) ◽  
Author(s):  
J. R. KIOVSKI ◽  
P. B. KORADIA ◽  
C. T. LIM
Keyword(s):  
Nox Reduction ◽  
Zeolitic Catalyst

Evaluation of a New Zeolitic Catalyst for NOxReduction with NH3

1980 ◽  
Vol 19 (2) ◽  
pp. 218-225 ◽  
Author(s):  
Joseph R. Klovsky ◽  
Pramod B. Koradia ◽  
Charles T. Lim
Keyword(s):  
Zeolitic Catalyst

Evidence from computational chemistry for the existence of a new zeolitic catalyst

1988 ◽  
Vol 1 (5) ◽  
pp. 133-139 ◽  
Author(s):  
D. E. Akporiaye ◽  
S. D. Pickett ◽  
A. K. Nowak ◽  
J. M. Thomas ◽  
A. K. Cheetham
Keyword(s):  
Computational Chemistry ◽  
Zeolitic Catalyst

Charting cation migration in a nickel exchanged zeolitic catalyst: An in situ rietveld X-ray study

1990 ◽  
Vol 2 (4) ◽  
pp. 181-183 ◽  
Author(s):  
John W. Couves ◽  
Richard H. Jones ◽  
John M. Thomas ◽  
Barnaby J. Smith
Keyword(s):  
Zeolitic Catalyst ◽  
X Ray ◽  
Cation Migration

scholarly journals Case Studies for Clean Technology Development in the Chemical Industry Using Zeolite Based Catalysts

Minerals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 462 ◽  
Author(s):  
Tatjána Juzsakova ◽  
Noor Al-Jammal ◽  
Igor Cretescu ◽  
Viktor Sebestyén ◽  
Cuong Le Phuoc ◽  
...  
Keyword(s):  
Case Studies ◽  
Reaction Temperature ◽  
Chemical Industry ◽  
Biodiesel Production ◽  
Zeolitic Catalyst ◽  
Impregnation Method ◽  
Zeolitic Tuff ◽  
Gas Treatment ◽  
First Case

This paper deals with the practical implementation of cleaner technologies in the chemical industry, using two case studies as an illustration. The first case study deals with the removal of NOx and N2O gases over an iron-doped ZSM-5 catalyst developed for tail gas treatment in nitric acid manufacturing. The aim for this case study was to investigate the efficiency of the zeolitic catalyst in the DeNOx process and to compare its catalytic activity with the conventional vanadia-titania. By the experiments carried out, it can be concluded that the new technological developments could significantly contribute to a decrease in environmental pollution. The second case study focuses on zeolite-based catalysts prepared from zeolitic tuff by the impregnation method, for biodiesel production from waste sunflower vegetable oil. The effects of operating and processing variables such as reaction temperature and time were investigated. The results showed that the highest biodiesel yield was 96.7% at an 11.5 MeOH/oil molar ratio, in the presence of 6.4 wt % catalyst at a 50 °C reaction temperature and reaction time of 2 h. The properties of the biodiesel that was produced, such as the viscosity, meet the required specifications of standard JUS EN14214. The common feature of the two different case studies is that both technologies use zeolite catalysts, namely naturally-occurring zeolitic tuff and synthetic ZSM type zeolite catalyst. The examples shown emphasize the importance of the zeolites in clean chemical technologies, which contribute to the protection of the environment.

Deactivation of a supported zeolitic catalyst: Diffusion, reaction and coke deposition in stochastic pore networks

1986 ◽  
Vol 41 (4) ◽  
pp. 711-718 ◽  
Author(s):  
R. Mann ◽  
P.N. Sharratt ◽  
G. Thomson
Keyword(s):  
Coke Deposition ◽  
Diffusion Reaction ◽  
Zeolitic Catalyst ◽  
Pore Networks

Studies on the Catalytic Cracking of Different Gas Oils for Maximizing Propylene

2012 ◽  
Vol 524-527 ◽  
pp. 1889-1894 ◽  
Author(s):  
Xiao Bo Chen ◽  
Ben Xian Shen ◽  
Chun Yi Li ◽  
Hong Hong Shan ◽  
Dong Zhang ◽  
...  
Keyword(s):  
Hydrogen Content ◽  
Catalytic Cracking ◽  
Pilot Scale ◽  
Acid Sites ◽  
Fluid Catalytic Cracking ◽  
Zeolitic Catalyst ◽  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Coker Gas Oil ◽  
Propylene Yield

The effects of feedstock’s properties on the propylene yield of catalytic cracking were investigated in a fluid catalytic cracking (FCC) pilot scale riser test unit operating with a circulating catalyst. Under simulated conditions, the results of catalytic cracking with four different gas oils (including two kinds of vacuum gas oil (VGO) and two kinds of coker gas oil (CGO)) show that the yield of propylene is increasing with the ascending hydrogen content of feed. When the hydrogen content is almost the same, propylene yield fed with paraffinic-base VGO is higher than that fed with intermediate-base or naphthenic-base VGO. The lowest yield is fed with CGO because of the more nitrogen compounds, which can poison the acid sites of the zeolitic catalyst.

Sign in / Sign up

Export Citation Format

Share Document