Modeling of ZnZSM-5 deactivation during liquefied petroleum gas catalytic cracking in the presence of steam

The mathematical catalyst deactivation models: a mini review

“…Barghi and Karimzadeh 90 proposed a kinetic model for the catalytic cracking at 565–635 °C in presence and absence of steam at atmospheric pressure of liquefied petroleum gas (LPG) conversion to olefin and aromatics using ZnO incorporated into a ZSM-5 catalyst. The deactivation model was extended to include coke formation, metal sintering, delamination of the zeolite framework and steam effect, and the overall catalyst activity as shown in eqn (25) .…”

The effect of water and zinc loading on LPG catalytic cracking for light olefin production using Response Surface Methodology

“…Light olefins, propylene and ethylene, are among the largest volumes of petrochemicals, which account for a significant portion of the market demand in the world [1][2][3][4][5]. Due to the limitation of thermal cracking in controlling the olefin product, feed dependence and the global concern about high operating temperatures, catalytic cracking has been taken into account as a traditional method of producing light olefin to overcome the quoted deficiencies [6][7][8].…”

“…Due to the limitation of thermal cracking in controlling the olefin product, feed dependence and the global concern about high operating temperatures, catalytic cracking has been taken into account as a traditional method of producing light olefin to overcome the quoted deficiencies [6][7][8]. Moreover, whilst steam cracking is nowadays carried out in different industries, catalytic cracking at mild temperature in the presence of mild steam as a diluent can be such an efficient alternative for steam cracking with various feedstocks and high energy consumption [2].…”