The influence of radical-forming additives on the product composition of the initiated cracking of Bayan-Erkhet field bitumen

2019 ◽  
Keyword(s):  
Product Composition

Selectivity changes of acetone transformation over ZSM-5 zeolites with different acido-basic properties

1989 ◽  
Vol 54 (8) ◽  
pp. 2054-2063 ◽  
Author(s):  
Jiří Čejka ◽  
Ludmila Kubelková ◽  
Pavel Jírů
Keyword(s):  
Main Product ◽  
High Conversion ◽  
Total Conversion ◽  
Basic Properties ◽  
Product Composition ◽  
Conversion Level ◽  
Integral Reactor ◽  
Low Activity ◽  
High Conversion Level

Acetone transformation catalyzed by HZSM-5 and NaZSM-5 zeolites and by zeolites modified with basic oxides was studied in an integral reactor at a temperature of 350 °C. Modification of acido-basic properties of ZSM-5 zeolites resulted both in the total conversion changes and in the essential changes in the product composition. Isobutene was found to be the main product over HZSM-5 zeolites exhibiting low activity, while aromatics prevailed when high conversion level was attained. Classical condensation of acetone yielding mesityloxide and phorones was observed over NaZSM-5 zeolites impregnated with CaO and ZnO.

scholarly journals Rendering Fat and Heavy Fischer-Tropsch Waxes Mixtures (0–100%) Fast Pyrolysis Tests for the Production of Ethylene and Propylene

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 367
Author(s):  
Martyna Murat ◽  
Zahra Gholami ◽  
Josef Šimek ◽  
Daily Rodríguez-Padrón ◽  
José Miguel Hidalgo-Herrador
Keyword(s):  
Linear Chain ◽  
High Energy ◽  
Chain Structure ◽  
Nitrogen Atmosphere ◽  
Energy Materials ◽  
Fischer Tropsch ◽  
Pyrolysis Products ◽  
Product Composition ◽  
Rendered Fat ◽  
Linear Chain Structure

A great emphasis is placed on searching for efficient sources to produce renewable fuels due to the actual trends in avoiding the use of fossil resources to mitigate the environment’s deterioration. Thus, the use of waste from the food or wood industry for the production of biofuels is widely researched and may contribute to sustainable general development. Rendered fat and Fischer-Tropsch waxes are high-energy materials which could be used for the pyrolysis reaction. Therefore, in this study, the effect of reaction parameters and feedstock composition on the distribution of the pyrolysis products has been examined. The experiments were carried out in a nitrogen atmosphere in a multi-shot pyrolizer instrument equipped with GC-FID. First, the influence of the temperature was examined at 785, 800, and 815 °C. The highest yield to olefins was observed at 815 °C. The effect of triglycerides and paraffins contents (0–100% with 10% ramp) in the feedstock on the product composition was investigated at 815 °C. The gas chromatography analyses revealed that the feedstock composition did not significantly affect the product composition due to the high temperature and the long linear chain structure similarities between the free fatty acids and Fischer-Tropsch waxes.

Product composition of the dynamic conversion of brown coal in supercritical water

2007 ◽  
Vol 41 (6) ◽  
pp. 323-330
Author(s):  
O. N. Fedyaeva ◽  
A. A. Vostrikov ◽  
D. Yu. Dubov ◽  
S. A. Psarov ◽  
M. Ya. Sokol
Keyword(s):  
Brown Coal ◽  
Supercritical Water ◽  
Product Composition

Glycine-Nitrate Combustion Synthesis of ZrO2-Y2O3 Nanopowders

2015 ◽  
Vol 1103 ◽  
pp. 37-43 ◽  
Author(s):  
E.I. Denisova ◽  
Irina A. Ustyuzhaninova ◽  
Vadim V. Kartashov ◽  
Vladimir A. Volkovich ◽  
Ivan V. Chernetskiy ◽  
...  
Keyword(s):  
Ammonium Nitrate ◽  
Combustion Synthesis ◽  
Particle Morphology ◽  
Process Temperature ◽  
Gas Generation ◽  
Heating Method ◽  
Product Composition ◽  
Glycine Nitrate Combustion ◽  
Nanostructured Powders

Formation of ZrO2-5 wt.% Y2O3 nanostructured powders in glycine-nitrate combustion synthesis was investigated and the effect of "glycine-to-NO3-" ratio and heating method on the reaction product composition and particle morphology studied. Urea and ammonium nitrate additives were used to optimize the regime of the process. The effect of these reagents on gas generation required for the dispersion of particles, and on the process temperature was investigated.

Product Composition of Pyrolyzed Sewage Sludge and Adsorption of Methylene Blue by Porous Material Derived from It

2008 ◽  
Vol 25 (1) ◽  
pp. 99-105 ◽  
Author(s):  
Wenzhong Shen ◽  
Qingjie Guo ◽  
Hui Wang ◽  
Xiangping Yang ◽  
Yihong Liu ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Sewage Sludge ◽  
Porous Material ◽  
Product Composition
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