FCC Gasoline Hydroisomerization Over Pt/HZSM-5 Catalysts

• Published in: Petroleum science and technology Vol. 24; no. 9; pp. 1027 - 1042
• Main Authors: Cao, Zubin, Liu, Junhua, Li, Dandong
• Format: Journal Article
• Language: English
• Published: Colchester Taylor & Francis Group 01.09.2006; Taylor & Francis
• Subjects: Applied sciences; Calcines; Catalysis; catalyst; Catalysts; Crude oil, natural gas and petroleum products; Energy; Exact sciences and technology; FCC gasoline; Fuels; Gasoline; hydroisomerization; Isomerization; Liquids; Petroleum products, gas and fuels. Motor fuels, lubricants and asphalts; Platinum; preparation methods; Processing of crude oil and oils from shales and tar sands. Processes. Equipment. Refinery and treatment units; Reduction; technology condition; preparation methods; Hydrocarbon; Octane number; Isomerization; Fluid catalytic cracking; Hydrogenation; hydroisomerization; FCC gasoline; technology condition; Olefin; Platinum; Gasoline; Catalyst
• ISSN: 1091-6466; 1532-2459
• DOI: 10.1081/LFT-200053889

Pt/HZSM-5 bifunctional catalyst of fluid catalytic cracking (FCC) gasoline hydroisomerization was prepared. The influence of calcinations and reduction conditions, the metal-incorporation technique, and metal loading on the hydroisomerization of FCC gasoline over the Pt/HZSM-5 bifunctional catalyst was studied. The process opinion catalyst of FCC gasoline hydroisomerization was obtained under the condition of temperature 290-300°C; pressure 1.5-2.5 Mpa; liquid hour space velocity (LHSV) 2.0-3.0 hr −1 ; V(H 2 )/V(Oil) = 2.0-3.0. The results showed that calcination conditions have a significant influence on ion-exchanged catalysts, as they control the final metal distribution. The reduction conditions and the method used for platinum incorporation were found to be important factors that affected both the activity and selectivity of the catalysts. Pt/HZSM-5 bifunctional catalyst possessed good activity for hydrogenation and isomerization. The olefin hydrocarbons of FCC gasoline were hydrogenated and the stability of FCC gasoline was improved under condition of unchanged octane number.