Improvement of gasoline octane number by blending gas soline with selective components

Dissertant

Eh-sheet, Iman Ali

University

University of Technology

Faculty

-

Department

Department of Chemical Engineering

University Country

Iraq

Degree

Master

Degree Date

2008

English Abstract

The main objective of this project was preparation of premium gasoline, by blending of different gasoline cuts produced in Al Doura Refinery.

Alternative additives were prepared from blending of some selective components (alcohol, aromatic) to enhancing octane number of Al Doura gasoline pool. Various petroleum streams were investigated including Light Straight Run Naphtha (LSRN), Reformats, and Power Formate, and tested by ASTM standard methods, such as RVP, Distillation temperatures, Sulfur content, Water content, Gum existent, PONA content, and octane number measuring by CFR engine and ZX analyzer. Gasoline pool was prepared by blending 30 % vol LSRN, 45 % vol Reformate, and 25 % vol Power Formate, RON was recorded (84.5).

Selective components were added to the gasoline pool (in different vol %) to improving it octane, such as Ethanol, Methanol, Toluene, Benzene, Xylene, Aniline ...etc.

Octane number of blends was measured by CFR engine. The best was selected and mixing with each other in various Vol % to preparing alternative additives of TEL and MMT to enhancing octane number of Al Doura gasoline pool. Mixtures of eleven alternative additives were prepared and Siding in 10.7 %vol to the prepared gasoline pool, increasing RON feas (3-11.5).

The best (E10, El I, E9, and E6).

However, added (E10, E11, E9, and E6) in 10.7 %vol to LSRN, RON increasing was (8-9) (E10) was booster octane, added in 7.4 %vol to the two different samples of gasoline pool, which tested by ASTM standard methods before and after adding (E10), octane number increasing for the first sample was recorded (5.7), and (3.7) for the second, however adding 7,4 % vol of (E10) to prepared gasoline pool, increasing RON to (9.1) was achieved.

Main Subjects

Chemistry

Topics

• Fuels
• Automobiles

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-305599