Akbar Shahsavand

1. Introduction Catalytic naphtha reforming is one of the most important processes in petroleum refining with the aim of high-octane gasoline production. It also can produce aromatics and hydrogen, which are valuable feedstocks for petrochemical processes [1,2,3]. Catalytic naphtha reforming units can be mainly classified into three types: semi-regenerative catalytic reformers (SRR), cyclic catalytic reformers, and continuous catalytic regeneration reformers (CCR).

Natural gas hydrates are considered as a promising fuel source in the relatively near future. Kinetic modeling of various steps of the natural gas hydrate formation process, such as dissolution, nucleation, and growth processes, has received numerous attentions. A novel mechanism is introduced for the entire nucleation and growth steps, and a proper mathematical model is presented to estimate the gas consumption rate in a constant temperature and pressure process.