Methanol to hydrocarbons over Ga/Zsm-5 catalyst and simulated by Matlab

Abstract

The rise in the crude oil price, catalytic conversion of methanol to hydrocarbon (MTH) has attracted the attention of numerous experts. The MTH process is an alternative method for producing gasoline and another valuable hydrocarbon from natural gas and coal. MTH process, MTO, and MTG process were used to convert useful products. Most researchers have used HZSM-5 catalyst to get gasoline hydrocarbons. The acid strength, catalyst topology, temperature, pressure, space velocity, process variables all influence the nature and extent of the reaction. The influences of metal oxide such as Ga oxide over HZSM-5 during methanol to hydrocarbons have been investigated. GaO to the HZSM-5 catalyst were used to increase the desired hydrocarbons' conversion, yield, and selectivity.Methylene, ethylene, propylene, dimethyl ether, toluene, ethylbenzene, xylene, tri methylbenzene, and tetra methylbenzene were the main products of the process. The liquid and gas products were analyzed using a flame ionization detector (FID) and a thermal conductivity detector (TCD). The catalysts' morphology was analyzed using scanning electron microscopy (SEM).A Lumped kinetic model was proposed in the literature were validated with the experimental data. The influence of metal doping over the HZSM-5 catalyst enhances the catalyst stability during the time on stream. Although Ga-modified HZSM-5 has the highest methanol conversion, the 1.5wt% Ga/HZSM-5 treated with oxalic acid catalyst was more resistant to deactivation than the GaO- HZSM-5 catalyst.