Impulse Technology for Middle Distillates

Loc Mac

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A Brief Introduction to HDT catalysis

Axens Impulse Technology

Impulse Product for Middle Distillates

Cobalt-Molybdenum: Impulse HR 1246

Nickel-Molybdenum: Impulse HR 1248

Agenda

2

ImpulseTM Technology

Maximum promotion

Maximum active phase dispersion

Optimized support characteristics including metal-support interactions

Combination of maximal activity

with maintained superior stability

3

A Brief Introduction to HDT catalysis

Axens Impulse Technology

Impulse Product for Middle Distillates

Cobalt-Molybdenum: Impulse HR 1246

Nickel-Molybdenum: Impulse HR 1248

Agenda

4

HR 1246 Impulse For Maximum Refinery Profits

Impulse Technology Maximum amount of Mixed Sites

Maximum Dispersion Maximum Promotion

Optimized pore size distribution

Significant Activity Gain HR 1246 is 7C more active than HR 626

Axens HR 626 superior stability maintained Regenerable technology: Axens ex-situ tools ready for use. Commercially proven

Successful industrial implementation in a European Refinery.

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HR 1246 Impulse: Industrial Feedback

European Refiner and its ULSD unit

HR 1246 Performances after 1 year of Operation

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Zoom on HDS-2 ULSD Unit (1/2) Process

Hot scheme One reactor with two beds: ~ 110 m3 of catalyst Gas quench Treat gas injection upstream feed/effluent exchangers Amine scrubber on the recycle gas

Operating Conditions

H2 partial pressure: ~ 32-35 bar LHSV: 2.25 h-1 H2/HC: 180 Nm3/m3

Gas purity: 85 to 90 vol.% 7

Zoom on HDS-2 ULSD Unit (2/2)

Feed (v/v)

LGO ~65 %

LCO ~12 %

Kero ~10 %

HCCS ~13 %

Main

Objective

8-9 ppm wt

Sulfur

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Choice of Impulse Catalyst

Open bidding procedure: Impulse HR 1246 chosen based on performances in pilot tests

In operation since January 2012

Catalyst Loading Details 30% reg. catalyst from refiner pool (1st bed)

70% fresh Impulse HR 1246 (2nd bed)

Dense Loading

Previous cycle: 100% Axens HR 626 (one regeneration)

Several different catalyst brands had previously been loaded

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Product Sulfur Content (ppm wt)

Days on

stream

Impulse HR 1246 Previous Catalyst

Continuous production of ULSD (average 9 ppm)

Average

9 ppm

Product Sulfur Content

10

0.830

0.835

0.840

0.845

0.850

0.855

0.860

0 50 100 150 200 250

Main feed characteristics:

no significant difference

between the cycles

ppm wt

C

Property Value

Density (API) 34.8

Sulfur Content (wt %) 0.15 to 0.4

T-90 D86 (C) 340 to 350

Impulse HR 1246

0 50 100 150 200 250

Previous Catalyst

5000

4000

3000

2000

1000

0

Final BP

D86

Density

Sulfur

0 50 100 150 200 250

g/l

390

380

370

360

350

340

Main Feed Characteristics

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Processing More Feed

100% of design capacity no matter what feed

10% to 15% higher throughput with Impulse

Feed Throughput (% of design capacity)

Days on

stream

Impulse HR 1246

Previous Catalyst

12

Increased Activity With Impulse

~10

C (~18

F) activity improvement

with Impulse HR 1246

WABT (

C)

Impulse HR 1246

Previous Catalyst

13

A Brief Introduction to HDT catalysis

Axens Impulse Technology

Impulse Product for Middle Distillates

Cobalt-Molybdenum: Impulse HR 1246

Nickel-Molybdenum: Impulse HR 1248

Agenda

14

HR 1248: HDS Activity Test

0

40

80

120

330 340 350 360 370

T = 10C

HR 648

Impulse HR 1248

Product Sulfur Content (ppm wt)

Impulse technology improved HDS activity by 10C

(C)

Temperature

Feed

70% SR / 30% LCO

European boiling range

Medium pressure

55 bars 800 psi H2 partial pressure

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Impulse HR 1248: Density Reduction Test

Major improvements in density reduction for

maximum Volume swell / Cetane Gain

0.842

0.844

0.846

0.848

0.850

0.852

0.854

330 340 350 360

HR 648 Impulse HR 1248

T > 15C

(g/cm3)

Temperature

(C)

Feed 70% SR / 30% LCO

European boiling range

Medium pressure 55 bars 800 psi H2 partial pressure

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Summary

A breakthrough technology for maximum refinery profits

Can process more difficult feedstock without cycle penalty

Longer Cycles Smaller reactor volume to be

considered for new project

Commercially proven 17