VHVI BASE OILS AND WHITE OILS FROM FUELS … BASE OILS AND WHITE OILS FROM FUELS HYDROCRACKER BOTTOMS . I . REFINERY OVERVIEW II. UCO TECHNOLOGY III. 1ST UPGRADING PROJECT IV.2ND UPGRADING

ASIA FUELS & LUBES CONFERENCE(JAN. 25~28, 2000)

H.Y. Sung (SK Corporation)S.H. Kwon (SK Corporation)J.P. Andre (Raytheon E&C)

VHVI BASE OILS AND WHITE OILS FROM FUELS HYDROCRACKER

BOTTOMS

I . REFINERY OVERVIEW

II. UCO TECHNOLOGY

III. 1ST UPGRADING PROJECT

IV. 2ND UPGRADING PROJECT

V. SUMMARY

CONTENTS

3

I. REFINERY OVERVIEW

G/CMEROX

MEROX

U/F REFORMER

S/B MEROX

MTBE/Alkylation

HCR

VRDS

MDU

RHDS

CRUDEOIL

CDU

C4-

LightNaph

Hvy-Naph

KERO

LGO

AR

VGOUCO

VDU

LBO

VR

RFCC

4

II. UCO Technology

A. HCR Scheme without Lube Process

Conversion : 99.5%Volume Increase : 115%Pass Conversion : 60%

VacuumDistil’n

Unit

HydroTreatingReactor

Hydro CrackingReactor

ProductFrac’r

AR VGO NAPH(L/N,H/N)

35,000B/D

20,000B/D5,000B/D

15,000B/DUCO

LPG

KEROSENE

DIESEL

VRDS

ASPHALT

5

B. Scheme with Lube Process (HCR +LBO)Conversion : 100wt%Volume Increase : 115%Pass Conversion : 60%

VacuumDistil’n

Unit

HydroTreatingReactor

Hydro CrackingReactor

ProductFrac’r

AR VGO

KEROSENE35,000B/D

5,000B/D

UCO

VacuumDistil’n

Unit

HydroDewaxingReactor

HydroFinishingReactor

ProductFrac’r

20,000B/D

II. UCO Technology

10,000B/D

15,000B/D

70D

100D

150D

70N

100N

150N

LPG

DIESEL

NAPH

VHVIBASEOILS

5,000B/D

6

HT HC

Fractionator Distillation IntermediateStorage

Reactor UnconvertedOil

SRecycle OilSurge Drum

Excess Distillates

VGO

UCO

70D

100D

150D

C. Scheme Of Vacuum Distillation Unit

II. UCO Technology

7

D. Scheme Of Catalytic Dewaxing Unit

II. UCO Technology

Waxy Oil

R/G Comp.W/W

LTS

HPS

HTS

Q/G Q/G

VS

VD

Off Gas

Naphtha

Distillate

LubeProduct

HDW Rx HDF Rx Separator High PressureStripper

Vacuum Stripper

BFW

M/U H2

8

E. High Quality Base Oil from HCR BTM

YUBASE produced by the UCO lube process has many desirable properties as lube base oils over those produced by conventional processes.

YUBASE is VHVI (Very High Viscosity Index) base oil because of inherent VI being above 120.

Properties YUBASE lubricants advantages

Very High Viscosity Index

Less VIILess deposit formationBetter wear resistanceBetter low temperature fluidity

Low Volatility Lower oil consumption

Excellent Oxidation Stability Longer oil life

II. UCO Technology

9

F. Economical in terms of Investment and Operating costs

II. UCO Technology

•(1) excludes Fuels Hydrocracker•(2) Includes vacuum distillation, solvent extraction, solvent de-waxing •(3) US Gulf Coast, 1998 •(4) Includes utilities, chemicals, labor, depreciation, maintenance,

taxes, insurance and overhead, 15% return on investment

UCO process(1)Conventionalprocess(2)

Investment cost.Million $(US) (3)

80 160

Operation cost, (4)$(US)/bbl product

21.8 39.9

10

G. Typical Feed & Product Properties

II. UCO Technology

Feed Propertes(UCO)API 38.2Distillation C

IBP510203050709095END POINT

362379388401413432456497514529

NITROGEN, wtppm < 1SULFUR wtppm < 1Pour Point C 39.0Metal, wtppm <1

Product Properties

Yubase-4 Yubase-6

Viscosity @100C cSt 4.2 6.0

VI 126 133

Flash Point, C 220 234

Pour Point, C -15 –15

Noack Volatility, wt% 17.5 7.8

11

A. PROJECT PURPOSE

? Lube Yield Increase

? Quality Upgrade (VI, Flash Point, Noack)

Iso-Dewaxing Technology(IDW)

Conventional Dewaxing Technology(CDW)

+ +

III. 1st YUBASE UPGRADING PROJECT

B. PROJECT SUMMARY

? Investment : 13.5mm$

? Pay-out : 1.5 Years

? Period : '96.12 ~ '97.7 (Construction : 17days, S/U: 10days)

? Dewaxing Technology : Conventional Dewaxing(CDW) Technology

? Iso-Dewaxing(IDW) Technology

12

C. EQUIPMENT MODIFICATIONS

? NEW H/E : Distillate Yield Increase

•Vac. Stripper O/H Condenser, Vac. Stripper O/H Steam Generator

? NEW Pump : Distillate Yield Increase

? NEW Procedure : Catalyst Reduction, TBA Titration

? INSTRUMENT MODIFICATIONS : F/T, C/V

? Heater Relocation : Lube Quality Control•HDT Rx. Ch'g Heater ? Vac. Stripper Feed Heater

? Line Remove : Old Procedure•Catalyst Reactivation Line / DMDS Injection Line

? Product Tank Construction : Lube Yield Increase? Change of Catalyst Loading Method

•Sock Loading ? Dense Loading ( 19.0 ? 20.1 Ton)


13

D. OPERATION CONDITIONS


Condition

Feed (m3/h)

LHSV(Hr-1)

Temp(℃)

Gas (Nm3/m3)

Feed Stock

SOR

33.1

1.0

528

150D 100D 70D

Inlet 337

Outlet 349

WABT 343

MOR

33.1

1.0

528

319

331

325

SOR

33.1

1.0

528

334

341

337

MOR

33.1

1.0

528

311

319

315

SOR

33.1

1.0

528

328

336

332

MOR

33.1

1.0

528

308

315

313

- Minimum H2 Partial Pressure at HDF Rx Outlet : 140kg/cm2

14

E. Project Result

IDW CDW

Dewaxing Isomerization Cracking

Pour Point -15°C -15°C

VI 132 121

Flash Point 240°C 232°C

Noack Vol 6.2 7.5

Yield

Naph. 10.5% 33.8%Dist’ 4.5% 6.0%Lube 85.5% 64.5%

SPEC

-

Max.-15°C

Min. 125

Min. 220°C

Max. 10

-

--

REMARK

-

-

+ 11

+ 8

- 1.3

- 23.3+ 1.5

+ 21.0

M/U H2 1,900Nm3/hr 4,500Nm3/hr- - 2,600


150N Case1) Product Spec & Yield

15

60.0%65.0%

70.0%75.0%

80.0%85.0%

90.0%95.0%

0 90 180 270 360 450 540 630 720 810 900 990

OPERATION DAYS

YIE

LD (

%)

70N 100N 150N

CDW

IDW


2) Yield Trend

16

110

115

120

125

130

135

140

0 60 120 180 240 300 360 420 480 540 600 660 720 780 840 900 9601020OPERATION DAYS

VI

012345678910

NO

AC

K

VI NOACK wt %

CDW IDW


3) VI/ Noack Volatility Trend (150N)

17

VGO HCR BTM LBO

VI

75

141132

125IDW

CDW

VIS7.6

6.5

7.0

6.5IDW

CDW

150N Case


F. VI/ VIS COMPARISION OF IDW/ CDW PROCESS

18

A. PROJECT PURPOSE

? Quality Upgrade (Aromatics Contents/ Sunlight Stability)

? Quality Upgrade (Noack Vol.)

B. PROJECT SUMMARY

? Investment : 1.6MM$? Pay-out : 1.1 Years? Period : '98.12 ~ '99.6? Change of Catalyst : Ni4352 → ICR407

C. EQUIPMENT MODIFICATIONS

? Vacuum Stripper : Random Packing(Pall Ring) ? Structured Packing? New Feed / HDW Reactor Effluent Exchangers

- Change of Configuration : 3S ? 1P ? 2S ? 2P? New Lube Product Cooler

- A New Heat Exchanger - Change of Configuration : 1S ? 1P ? 1S ? 2P

IV. 2nd YUBASE UPGRADING PROJECT

19


D. Operation Condition Setting(Pilot Test)

1. UV Absorbance (Direct, H2O Reference)

HDF WABT(C) 180 205 230 255 280

UV Absorbance @226nm 3.455 3.273 3.194 2.914 2.812

254nm 0.529 0.294 0.184 0.113 0.126

275nm 1.214 0.631 0.385 0.228 0.236

325nm 0.031 0.020 0.014 0.017 0.032

260~350nm 1.214 0.631 0.385 0.228 0.236

2. Color Stability (after 3hrs @ 180’C Gravity Oven)

APHA Color 119 26 11 12 15

Saybolt Color +7 +23 +27 +27 +26

3. UV Light Stability (after 8 Days @ 70’C, 15W UV Lamp) Color Change, Days 1 5(*) - - -

Floc, Days 5 - - - -

4. Simplified RCS

RCS (*) 6 4 3 1 2

(*) : Non-Yellowish

Optimum HDF Rx. WABT

20


Tag Unit ICR 407 (New) Ni 4352 (Old)

1st Bed ABT ?C 257 266 - 9.0

2nd Bed ABT ?C 254 265 - 11.0

3rd Bed ABT ?C 253 264 - 11.0

Total WABT ?C 255 265 - 1.0

1st Bed DT ?C 1.5 1.0 + 5.0

2nd Bed DT ?C 2.1 1.5 + 6.0

3rd Bed DT ?C 1.5 1.0 + 5.0

150N Case

E. Operation Condition

21

F. Project Results

Old New

Vac. Stripper Random Structured

Catalyst Ni4352 ICR407

Sun Light Stability

< 1Day >7 Days

UV(260~350nm) 2.35 0.26

Noack Vol 6.2 5.6

Yield

Naph. 10.5% 10.5%

Dist’ 4.5% 3.5%

Lube 85.5% 86.5%

SPEC

-

-

-

Max. 0.5

Max. 10

-

-

-

REMARK

(Packing)

-

-

- 2.09

- 0.6

-

- 1.0

+ 1.0

150N Case


22

G. Project Results(Simplified RCS)

New Old

180C 205C 230C 255C 280C Old Old


HDF Rx. Temp

23

V. SUMMARY

FUEL HCR NAPHTHA, KEROSENE, DIESEL

UCO PROJECT VHVI BASE OILS

1ST YUBASE UPGRADING VI, LUBE YIELD

2ND YUBASE UPGRADING WHITE OILS, NOACK

UCO TECHNOLOGY

UCO TECHNOLOGY + ISOMERIZATION

UCO TECHNOLOGY + ISOMERIZATION +?

Documents

VHVI BASE OILS AND WHITE OILS FROM FUELS … BASE OILS AND WHITE OILS FROM FUELS HYDROCRACKER BOTTOMS . I . REFINERY OVERVIEW II. UCO TECHNOLOGY III. 1ST UPGRADING PROJECT IV.2ND UPGRADING