Reactor modeling and simulation of moving-bed catalytic reforming process

Effect of normal paraffins separation from naphtha on reaction kinetics for olefins and aromatics production

“…An effective reaction kinetics model must properly represent all major types of reactions and at least account for the most important classes of chemical species present in the reaction mixture. Recently, various kinetics models for NTC (Belohlav et al, 2003;Jia et al, 2009;Keyvanloo et al, 2012;Niaei et al, 2004;Sadrameli and Green, 2005;Seifzadeh Haghighi et al, 2013) and NCR (Gyngazova et al, 2011;Hou et al, 2006;Iranshahi et al, 2013;Meidanshahi et al, 2011;Rahimpour et al, 2013;Rodríguez and Ancheyta, 2011;Zagoruiko et al, 2014) have been developed.…”

“…The naphtha catalytic reforming (NCR) unit occupies a key position in refineries to obtain high octane gasoline and BTX components which are the basic substances of petrochemical industries (Gyngazova et al, 2011;Iranshahi et al, 2013;Rahimpour et al, 2013;Rodríguez and Ancheyta, 2011). Hydrogen is a valuable by-product of the naphtha catalytic reforming process, which in most refineries is used for the hydrocracking, hydrotreating, and other hydrogen-consuming processes.…”

Theoretical Study of Palladium Membrane Reactor Performance During Propane Dehydrogenation Using CFD Method

“…Alternatively, the direct dehydrogenation of propane (see Eq.1) represents an efficient route to propene: 3 …”

“…Indeed, the use of the MR permits one to combine the advantages of conventional dehydrogenation and separation processes. In this case, the propane undergoes the dehydrogenation reaction over the catalyst in the shell side and hydrogen permeates through the membrane to the tube compartment It should be noted that selective hydrogen removal through the membrane allows one to shift the reaction equilibrium towards the desired products [2][3].…”

“…Nowadays the world demand of propene is fast increasing [1][2][3] because of the heavy increase in the demand of polypropylene, acrylonitrile, propene oxide, cumene, phenol, isopropyl alcohol and many other propene derivatives. The propene obtained as a coproduct from steam crackers or Face Centered Cubic (FCC) units does not satisfy the growing demand.…”