The document discusses naphtha hydrotreating, which involves removing sulfur, nitrogen, metals, and olefins from naphtha. It presents information on the process overview, reactor configuration, catalyst preparation and characterization. Details are provided on the catalyst composition and properties, as well as pilot plant trials conducted in Saudi Arabia in the 1990s. Challenges mentioned include providing optimal reaction conditions and adapting to variations in feedstock quality.

1. Presented by: Sharef Albahrawi.
King Fahd University of Petroleum and Minerals
Department of Chemical Engineering

2. 1. Introduction
2. Process Overview
3. Reactor Configuration
4. Catalyst Preparation/Characterization
5. Local Availability & Challenges

3.  It involves Removal of:
1. Sulfur
2. Nitrogen
3. Metals
4. Olefins (-C=C-)
Hydrotreater
Naphtha
(C6-C10)
Reforming

4. Naphtha Hydrogen
*Courtesy of Petroleum Refining Handbook

5. *Courtesy of Petroleum
Refining Handbook.
*(Nimlos et al, 2013)

6. Compound Function Composition
(wt%)
Preparation
Technique
γ-Al2O3 Support 72.70 Powder phase
MoO3
Active Agent
15.00
Equilibrium
Deposition
CoO
Active Agent
4.00
Dry
Impregnation
K2O
Basic Promoter
0.08
Dry
Impregnation
CaO
Basic Promoter
0.02
Dry
Impregnation
[Ref] [Centeno et al, 2010] [Shaikh, 2013] [Kordulis et al, 2004]

7. Surface Area (m2/g) Catalyst Diameter (nm) Catalyst Life (yr)
Value 193 10 1.5
Method BET SEM -
[Ref] Mochida et al, 2004 Mochida et al, 2004 UOP , 2003
* Courtesy of Mochida et al, 2004

8.  Cost: 20,000 $/ton

9.  Pilot Plant ,Ras Tanura refinery, funded by
Saudi Aramco,1990-1992 [A.Ali, KFUPM].
 Pilot Plant, Riyadh Refinery, funded by Saudi
Armco, 1991-1992 [A.Ali, KFUPM].

10.  1-Providing conditions for various reactions.
 2-Alternations in feed quality.
Hydrotreater
FCC
Naphtha
Straight-run
Naphtha
Coker
Naphtha
Stable
Naphtha