Leading TheUnheading Revolution

A Heritage of FirstsA History of Innovations

Glenn Curtiss Orville WrightWilbur Wright

Aviation’s Pioneers

First Flight December 17, 1903

Unheading Evolution

Manual (1950) Swing Away (1990) Enclosed (2001)

First Installation: September 20, 2001

500,000+ cycles 500,000+ cycles No recordable injuriesNo recordable injuriesNo incidents No incidents

Research & Development

– Understanding of the serve-service nature of the delayed coking process– Switch & cutting deck space constraints – Metallurgical testing analysis – Selection of materials of construction– Selection of material hard surfacing– Coke bond/shear strength– Actuator/drive train thrust requirements– Evaluated single-disk, dual-disk, and rotating-disk valve design

SASOL-CarboTar PETROZUATA

CoffeyvilleResources

ENI - Gela Raffinaria

Petronas

RepsolUfaneftikem

PEMEX

Nippon Oil

PetroCanada

Husky

CNRL

TOTALTOTAL

Worldwide Coker MarketEstimated Coke-drums: 750

Bottom Unheading Devices Sold:United States: 152Outside USA: 100Total: 252

Top Unheading Devices Sold:United States: 59Outside USA: 72Total: 131

1.75’ / 533mm

8’ / 2.4m

28’ / 8.5m

72000 lbs / 32660 kg

DeltaGuard Bottom Unheading DeviceDimensional Data

US Patents6565714 69647276660131 68438896989081 70334607316762 58167877115190 7117959

International Patents209822 255082

Other US and International patents pending

Revolutionary Design• All metal seating

– Nitrided gate and hard chromed seats

• Independent dual seats– Double block & purge/bleed – Floating top seat– Static lower seat– Protected in open/closed positions

Revolutionary Design• Self cleaning

– Constant load keeps gate and seat surfaces together at all times

– No chance of particulate being trapped between the gate and seats

• Single-gate design– Device remains sealed even with

HPU or actuator shaft failure – No complex internal components

(balls, wedges, etc.) which may wear, clog, or fail

Revolutionary Design

• Steam Purged Body– Regulates body temperature– Creates a barrier against

coke migration– Diagnostic tool– No need to continually turn

steam off and on for each cycle

• Proven Internal Coke Containment System– Keeps coke fines from

entering the bonnet– Reduces steam

consumption

Revolutionary Design

Design Specifications• ASME Sec VIII Div 1 & 2• U-Stamp Designation• MAWP 1062 kPa (154 PSI) @ 504°C (940°F)• FEA-Finite Element Analysis - mechanical Integrity • CRN# -ABSA• PED certification including ATEX & CE markings• GOST-R certification • Cooling box - shorter valve length• Face to face - 614mm (20 1/8”)• One major moving part - reliability• Double block & purge/bleed-dual seating technology • One HPU requirement - for bottom & top unheading and related equipment• Materials of construction - major components

- Body= 5C cast ( A 217 C 5 )- Bonnet= 2 ¼ chrome fab (A 387 Gr22)- Gate= A 387 Gr 5 with Nitriding- Seats= F182 Gr5 with hard chrome- Shaft= 17-4 PH1100

Safe Unheading• Totally enclosed system from the top

of the coke-drum to the drain pit, rail car or sluice way

• Eliminate exposure risk to personnel, equipment, and the unheading deck

• Remotely operated from control room

• Safe secondary backup actuation• Positive mechanical lockout• All safety interlocks incorporated• Isolation of a tarry drum• Isolation or control of a drum dump

The DeltaGuard® Advantage

Easy Operation• Push button controls • No feed line to disengage • Discharge chute permanently

attached to device • No intermediate chute to raise

The DeltaGuard® Advantage

• No head or feed line coupling gaskets to replace

• No water flushing• No drum flange surfaces, tools or

deck to clean between cycles • No replacement parts after

each cycle• No maintenance or replacement

of tools• Device has one major moving part

Reliable, Low Maintenance

The DeltaGuard® Advantage

The DeltaGuard® AdvantageExperience–Proven Technology• 7 year installation base • Over a half million combined unheading cycles• Zero maintenance between turnarounds • Zero recordable injuries• Continuous coker operation

The DeltaGuard® AdvantageReturn on Investment• Immediate reduction of operating

and maintenance costs • Unheading and reheading time of

2 - 3 minutes• Increased production due to reduced

cycle times • Drum water can be drained directly

through device • Optional throttling design - control of

coke and water through port• Compatible with shot coke

production • Elimination of uncontrolled fallout• Ability to safely process alternative

crudes, namely shot coke

Reliance InstallationJamnagar, India

• Installation June 2008• Fabricated bonnet design• New drum with single feed entry• 8 bottom valves & 8 top valves

Valero InstallationSan Nicolas, Aruba

• Installation March 2006• Cast body/bonnet design• Bolt-in transition spool• 4 bottom valves

Husky InstallationLloydminster, Canada

• Installation June 2007• Cast body/bonnet design• Bolt-in transition spool• 2 bottom valves

Petrobras InstallationDuque de Caxias, Brazil

• Installation April 2008• Cast body/bonnet design• New drum with single feed entry• 4 bottom & 4 top valves

5 Year TurnaroundChevron, Salt Lake City

Gate Lower Seat

DeltaGuard Hydraulic Power Unit• Simple, reliable and redundant

hydraulic system

• Minimal hydraulic system requirements for valves, fittings and piping

• One hydraulic cylinder

• One hydraulic line in and out

Remotely operable from local control panel or control room

DeltaGuard Control Station

DeltaGlide Transport System with power-lift

DeltaGuard Installation:• The DeltaGlide provides ease of installation and maintenance.

• Optional power-lift raises/lowers DeltaGuard® and DeltaGlide™ from the drum flange to the structure.

DeltaGuard Maintenance:• Maintains component alignment

during disassembly • Provides sufficient runway for

complete parts removal and re-installation on the switch deck

DeltaGlide Transport System with power-lift

DeltaGlide Transport System

DeltaGlide Installation

DeltaGlide Installation

DeltaGlide Installation

Full DCU Product LineTop Unheading

Bottom Unheading

DeltaGlide™

Drill Stem Guide

HPU &Controls

Transition Spools

Auto-SwitchCoke Cutting Tool

Isolation Valve

DeltaGuard® Top Unheading Device• Same proven technology used in the bottom unheading device• Proven top unheading safety and reliability• Patented seating technology• 131 units sold

193’’ / 4.9m

28” / 0.71m

12000 lbs5443 kg

64” / 1.63m

Drill Stem Guide and Enclosure

• Maximum top head safety when used with the DeltaValve® auto switch coke cutting tool

• Customized for site specific requirements• Standard design provides;

– Drill stem guidance– Continuous cutting tool containment– Blowout protection-relief capacity and

routing

Auto-Switch Coke Cutting Tool

• Provides automatic shifting of coke cutting and boring modes

• Pump pressures to 5500 psi (37.92 MPa)• Switching set pressures between

200-300 psi (1.38 – 2.07 MPa)• Complete CFD nozzle optimization for

combinations of pump pressures to 5500 psi (37.92 MPa), flows to 2000 gpm (7570 lpm), and drum diameters to 32 feet (9.75 m).

• Remote verification of drilling mode• Prototype-current testing Chevron Salt Lake &

Valero Pt Arthur

Isolation Valves• Based on proven DeltaGuard® sealing technology• Continuous performance from turnaround to

turnaround • Heavy-duty linear electric/hydraulic drive train• Dual, metal, self cleaning seats• Live loaded• Steam purged body and bonnets• Extremely low steam usage • Double block and purge• ANSI 300# design• Top entry design• In-line repairable