Kinetic Modeling for Assessing the Product Distribution in Toluene Hydrocracking on a Pt/HZSM-5 Catalyst

2008 ◽  
Vol 47 (4) ◽  
pp. 1043-1050 ◽  
Author(s):  
Pedro Castaño ◽  
José María Arandes ◽  
Bárbara Pawelec ◽  
Martín Olazar ◽  
Javier Bilbao
Keyword(s):  
Kinetic Modeling ◽  
Product Distribution

scholarly journals Kinetic Modeling of Catalytic Olefin Cracking and Methanol-to-Olefins (MTO) over Zeolites: A Review

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 626 ◽  
Author(s):  
Sebastian Standl ◽  
Olaf Hinrichsen
Keyword(s):  
Kinetic Modeling ◽  
Product Distribution ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Reaction Networks ◽  
New Production ◽  
Modeling Methodology ◽  
Steam Cracking ◽  
Increasing Demand ◽  
Future Work

The increasing demand for lower olefins requires new production routes besides steam cracking and fluid catalytic cracking (FCC). Furthermore, less energy consumption, more flexibility in feed and a higher influence on the product distribution are necessary. In this context, catalytic olefin cracking and methanol-to-olefins (MTO) gain in importance. Here, the undesired higher olefins can be catalytically converted and, for methanol, the possibility of a green synthesis route exists. Kinetic modeling of these processes is a helpful tool in understanding the reactivity and finding optimum operating points; however, it is also challenging because reaction networks for hydrocarbon interconversion are rather complex. This review analyzes different deterministic kinetic models published in the literature since 2000. After a presentation of the underlying chemistry and thermodynamics, the models are compared in terms of catalysts, reaction setups and operating conditions. Furthermore, the modeling methodology is shown; both lumped and microkinetic approaches can be found. Despite ZSM-5 being the most widely used catalyst for these processes, other catalysts such as SAPO-34, SAPO-18 and ZSM-23 are also discussed here. Finally, some general as well as reaction-specific recommendations for future work on modeling of complex reaction networks are given.

Acidic processing of hemicellulosic saccharides from pine wood: Product distribution and kinetic modeling

2014 ◽  
Vol 162 ◽  
pp. 192-199 ◽  
Author(s):  
Sandra Rivas ◽  
María Jesús González-Muñoz ◽  
Valentín Santos ◽  
Juan Carlos Parajó
Keyword(s):  
Kinetic Modeling ◽  
Product Distribution ◽  
Wood Product ◽  
Pine Wood

Kinetic modeling of GTL product distribution over a promoted cobalt catalyst

2012 ◽  
pp. EEO8
Author(s):  
Branislav Todic ◽  
Wenping Ma ◽  
Gary Jacobs ◽  
Burtron Davis ◽  
Dragomir Bukur
Keyword(s):  
Kinetic Modeling ◽  
Cobalt Catalyst ◽  
Product Distribution

Allene oxidation in jet-stirred reactor : a kinetic modeling study

1990 ◽  
Vol 87 ◽  
pp. 1159-1172 ◽  
Author(s):  
P Dagaut ◽  
M Cathonnet ◽  
B Aboussi ◽  
JC Boettner
Keyword(s):  
Kinetic Modeling ◽  
Stirred Reactor ◽  
Allene Oxidation ◽  
Modeling Study

Use of thermomechanical pulp fibers from waste woods for making eco-friendly cushioning material

TAPPI Journal ◽  
2010 ◽  
Vol 9 (7) ◽  
pp. 15-21 ◽  
Author(s):  
JI-YOUNG LEE ◽  
CHUL-HWAN KIM ◽  
JEONG-MIN SEO ◽  
HO-KYUNG CHUNG ◽  
KYUNG-KIL BACK ◽  
...  
Keyword(s):  
Impact Test ◽  
Product Distribution ◽  
Expanded Polystyrene ◽  
Thermomechanical Pulp ◽  
Fiber Structure ◽  
Pulp Fibers ◽  
Cationic Starch ◽  
Thermal Insulating ◽  
Surface Sizing ◽  
The Impact

Eco-friendly cushioning materials were made with thermomechanical pulps (TMPs) from waste woods collected from local mountains in Korea, using a suction-forming method without physical pressing. The TMP cushions had superior shock-absorbing performance, with lower elastic moduli than expanded polystyrene (EPS) or molded pulp. Even though the TMP cushions made using various suction times had many voids in their inner fiber structure, their apparent densities were a little higher than that of EPS and much lower than that of molded pulp. The addition of cationic starch contributed to an increase in the elastic modulus of the TMP cushions without increasing the apparent density, an effect which was different from that of surface sizing with starch. In the impact test, the TMP cushions showed a more ductile pattern than the brittle EPS. The porosity of the TMP cushion was a little less than that of EPS and much greater than that of molded pulp. The porous structure of the TMP cushions contributed to their excellent thermal insulating capacity, which was equivalent to that of EPS. In summary, the TMP packing cushions showed great potential for surviving external impacts during product distribution.

Estimation and Kinetic Modeling of Human Arm using Wearable Robot Arm

2016 ◽  
Vol 136 (4) ◽  
pp. 254-262 ◽  
Author(s):  
Takahiro Yamazaki ◽  
Sho Sakaino ◽  
Toshiaki Tsuji
Keyword(s):  
Kinetic Modeling ◽  
Robot Arm ◽  
Wearable Robot ◽  
Human Arm
Sign in / Sign up

Export Citation Format

Share Document