quá trình isome hóa

quá trình isome hóa trong nhà máy lọc dầu. (tài liệu nước ngoài của thầy giáo mang về, chưa viết thành sách nên nó còn có vẻ giống bản thảo là chính).

US Europe Advanced solutions for paraffins isomerization Advanced solutions for paraffins isomerization RON number of hydocarbone isomers Isomerization Reactions Isomerization is a reversible and slightly exothermic reaction: n-paraffin i-paraffin - The conversion to iso-paraffin is not complete; - It does not depend on pressure; -But it can be increased by lowring the temperature; - However operating at low temperatures will decrease the reaction rate; - For this reason a very active catalyst must be used. Isomerization Catalysts Comparison of operating conditions of isomerization Isomerization mechanism Process scheme of isomerization unit (UOP) Process scheme of isomerization step one using Al 2 O 3 -Cl catalyst Process scheme of isomerization products return using Al 2 O 3 -Cl catalyst Process scheme of isomerization products separation by molecular sieve adsorber used Al 2 O 3 -Cl catalyst [...]...Process scheme of isomerization products separation by molecular sieve adsorber used Al2O3-Cl catalyst Hydroisomerization of heptane: mechanistic aspects and industrial challenges RON numbers of heptane isomers Mechanism of acid-catalyzed isomerization Monomolecular mechanism Mechanism of acid-catalyzed isomerization of nheptane Possible and “forbidden” rearrandements... cation Beta – scission of a carbenium ion Monomolecular mechanism of type A and type B isomerization Bimolecular mechanism Relation between isomerization and cracking Mechanism relation between hydroisomerization and hydrocracking The competition for isomerization and cracking in bimolecular pathways Acid catalyzed hydroisomerization of n-heptane on bifunctional catalyst Shape selective concepts for n-heptane... reactant (top), product shape (middle) and transition state (bottom) selective Technical and economical evaluation of a zeolite membrane based heptane hydroisomerization process Kinetic diameter, Boiling point and RON of heptane isomers Heptane hydroisomerization process flow scheme Lights Products Hydrogen Makeup Hydrogen Purge Feed Tailling Column Topping Column Reactant Separation column Reactor 2 . catalyst must be used. Isomerization Catalysts Comparison of operating conditions of isomerization Isomerization mechanism Process scheme of isomerization unit (UOP) Process scheme of isomerization step. US Europe Advanced solutions for paraffins isomerization Advanced solutions for paraffins isomerization RON number of hydocarbone isomers Isomerization Reactions Isomerization is a reversible and slightly. scheme of isomerization products return using Al 2 O 3 -Cl catalyst Process scheme of isomerization products separation by molecular sieve adsorber used Al 2 O 3 -Cl catalyst Process scheme of isomerization