Synergistic Coconversion of Refinery Fuel Oil and Methanol over H-ZSM-5 Catalyst for Enhanced Production of Light Olefins

Abstract

Application of methanol as a coreactant in the atmospheric catalytic cracking of refinery fuel oil (abbreviated as the MFOCC process) over the H-ZSM-5 catalyst has been investigated for the first time with the aim to improve the olefin productivity of the heavy hydrocarbons and mitigate coke formation and catalyst deactivation. The results clearly proved the synergistic influence of cocracking in the MFOCC scenario. The integrated MFOCC process increased both light olefin (C 2 = − C 4 = ) yield and gasoline (C 5 −C 11 ) share of the liquid products to more than 36.7 and 78.7 wt %, respectively. Influence of contact time and temperature was also discussed.

Ge‐Substituted Hierarchical Ferrierite for n‐Pentane Cracking to Light Olefins: Mechanistic Investigations via In‐situ DRIFTS Studies and DFT Calculations

“…[8][9][10] Typically, a solid proton-donor acid (Brønsted acid) catalyst, especially an acidic zeolite is one of the most active and popular materials in an alkane cracking because of their appropriate acid and shape selective properties for the production of light olefins. [11][12][13][14][15] Indeed, the product distribution is directly dependent on various parameters including acidity, and their porous structures. Typically, there are several types of zeolites applied in this process, such as ZSM-5, FER, CHA, FAU, and MOR.…”

Enhancing the Production of Light Olefins from Wheat Straw with Modified HZSM-5 Catalytic Pyrolysis

“…Light olefins (i.e., ethylene, propylene, and butylene) are the key and basic feedstock of the chemical industry and are mainly used to produce polyethylene, polypropylene, epoxyethane, and other organic chemical products . In traditional technology, light olefins are mainly produced from fluid catalytic conversion or steam cracking routes using light alkane, naphtha, and other petroleum products as feedstock; , however, with the declining fossil energy and growing environmental deterioration, the production of light olefins from nonpetrochemical feedstock has become an attractive route. Biomass, as the only carbon-containing renewable and environmentally friendly energy, can be used as an alternative feedstock for the production of biofuels and biochemicals .…”