CatalyticreformingprocessContinuous catalytic reforming(UOP&IFPcompany)The catalyst can be continuouslyregenerated,and theoperation pressure is lower, and the yield is higher.M2 reforming (Mobil company in USA)M2 reforming uses ZSM-5 shape-selective catalyst,andvariouslighthydrocarbon as rawmaterials.Aromax reforming (Chevron company)(lightnaphtha)Pt/Ba-K-L Zeolite catalyst, naphtha or reforming residualoil with higher content C6-C8 alkanes as raw materials
⚫ Continuous catalytic reforming (UOP & IFP company) The catalyst can be continuously regenerated, and the operation pressure is lower, and the yield is higher. ⚫ M2 reforming (Mobil company in USA ) M2 reforming uses ZSM-5 shape-selective catalyst, and various light hydrocarbon as raw materials. ⚫ Aromax reforming (Chevron company) (light naphtha) Pt/Ba-K-L Zeolite catalyst, naphtha or reforming residual oil with higher content C6-C8 alkanes as raw materials. Catalytic reforming process
2)ProductionaromaticsbycrackinggasolineThe componentsof crackinggasoline40~60%C6-C9 AromaticsDienes, Mono olefins, AlkanesOxygen, Nitrogen, Sulphur, Arsenic
(2) Production aromatics by cracking gasoline The components of cracking gasoline 40~60% C6-C9 Aromatics Dienes, Mono olefins, Alkanes Oxygen, Nitrogen, Sulphur, Arsenic
Pretreatmentof crackinggasolineC6-C9 fractions are obtained by removinggCsfractions.partial C9 aromatics and the fractions with morecarbon than C9CrackinggasolinehydrogenationRefiningbyhydrogenation(Refining process of two-stage hydrogenation
➢ Pretreatment of cracking gasoline C6-C9 fractions are obtained by removing C5 fractions, partial C9 aromatics and the fractions with more carbon than C9. ➢ Cracking gasoline hydrogenation Refining by hydrogenation (Refining process of two-stage hydrogenation)
One-stageehydrogenationDienesMono olefinsAlkenylAromaticsaromaticsTechnological conditions: Pd/Al,Os catalyst(low temperatureliquid-phasereaction)Index:Contentof dienes isless than2%
One-stage hydrogenation ◆Dienes Mono olefins Alkenyl aromatics Aromatics ◆ Technological conditions：Pd/Al2O3 catalyst (low temperature liquid-phase reaction) ◆ Index：Content of dienes is less than 2%
Two-stagehydrogenationMono olefinsSaturatedhydrocarbon(Removing organic compounds containingsulfur, oxygen, nitrogen)Technological conditions : Co-Mo-Al,O3 catalysthigh temperature,gas-phase reaction)Indexes:Bromine value islower than1Sulfur mass fraction isless than 2X10-6
Two-stage hydrogenation ◆ Mono olefins Saturated hydrocarbon (Removing organic compounds containing sulfur, oxygen, nitrogen) ◆ Technological conditions：Co-Mo-Al2O3 catalyst ( high temperature, gas-phase reaction) ◆ Indexes：Bromine value is lower than 1 Sulfur mass fraction is less than 2×10-6