Fluid Cat Cracking Zsm-5



Z-CAT HP™ LPG Olefins and Gasoline Octane Enhancement Additive

DESCRIPTION Z-CAT HP is a high activity version of INTERCAT’s pentasil additive, Z-CAT Plus. Both of these additives are based on the use of ZSM-5, a member of the pentasil family of crystalline zeolites. These catalytic materials are characterized by a five-membered ring structure with a 5.2 Angstrom port. This structure is highly selective for cracking gasoline range normal olefins which would normally hydrogenate to low octane normal paraffins. The products of this highly selective cracking are predominantly LPG olefins with no increase in yields of C2 or lighter. In addition to the boost in LPG olefins, PENTA-CAT additives also increase gasoline octanes through preventing the formation of low octane normal paraffins. The benefit of the Z-CAT HP over other manufacturer's ZSM-5 additives is its matrix structure. The pentasil crystals are incorporated into an improved INTERCAT proprietary matrix that is designed to be catalytically inert whilst allowing easy access to the highly active pentasil crystals. Z-CAT HP is recommended over Z-CAT Plus in cases where a large amount of Z-CAT Plus is indicated to achieve refinery objectives. Using Z-CAT HP in these circumstances will alleviate the possibility of equilibrium catalyst MAT activity dilution due to adding large quantities of additive. Particle size distribution and bulk density have been optimized to be compatible with all commercially available FCC catalysts. Z-CAT HP has been pretreated to maximize its resistance to attrition and, on an as-received basis, it is equal to or better than that of the hardest FCC catalysts available.

TYPICAL PROPERTIES Attrition Resistance (ASTM D5757) Surface Area,

m2/g

ABD, g/cc Na2O, wt%

55 gallon drums - 330 lbs / 150 kg each

85

Bulk bins or Big bags - 2,000 lbs / 1,000 kg each Bulk Truck

6 0.15

Particle Size Distribution 0-20 microns, wt% 0-40 microns, wt% Average Particle Size, microns



1.0 0.75

LOI (1 hour @ 1000°C), wt%

Z-CAT HP

PACKAGING

1 8 92

is covered by U.S. Patents #5,190,902, #5,288,739 and other patents.

Version 4.1

INTERCAT P.O. Box 412, Sea Girt, NJ 08750 USA (732) 223-4644, 1-800-346-5425 FAX (732) 223-3447 e-mail: [email protected] www.intercatinc.com

Technical information and data regarding the composition, properties or use of the products described herein is believed to be reliable. However, no representation or warranty is made with respect thereto, except as made by INTERCAT in writing at the time of sale. INTERCAT cannot assume responsibility for any patent liability which may arise from the use of any product in a process, manner or formula not designed and produced by INTERCAT.

Data Sheet - Z-CAT HP 4.1.doc 2002-09-02

ZSMZSM-5 Technology Summary: ZSM-5 is a shape-selective zeolite used in the FCC process for improved gasoline octane and increased light olefins. In 1984, Grace Davison introduced Additive-O, the first FCC additive to incorporate ZSM-5. Additive-O offered refiners the ability to respond to the octane shortfall created by the phase-out of lead from gasoline. Since the introduction of our first ZSM-5 additive, Grace Davison has continued to develop products with even higher activity to meet the demands of the refining industry. Our ZSM-5 additive product portfolio includes OlefinsExtra (O-HS™) as

well as the most widely used ZSM-5 additive in the industry, OlefinsMax. Recently, Davison successfully commercialized the next generation of ultra-high activity additives, OlefinsUltra. All three products contain unique matrix technology that ensures maximum zeolite activity, stability and utilization. Additive physical properties (attrition resistance, average bulk density and particle size distribution) are designed to be compatible with the FCC catalyst. Product Portfolio:

OlefinsExtra contains a moderate level of ZSM-5 crystal and is an excellent choice for refiners wishing to achieve the maximum increase in gasoline octane with a moderate increase in light olefins selectivity.

OlefinsMax is recommended for refiners who desire high yields of light olefins and octane boost that would otherwise require higher concentrations of less active ZSM-5 additives. OlefinsMax is an option for units operating under a cat to oil constraint. A breakthrough in matrix technology has allowed the introduction of the novel, ultra-high activity additive, OlefinsUltra. OlefinsUltra is the most active ZSM-5 FCC additive currently available on the market and contains the most ZSM-5 crystal allowable under a new license agreement. OlefinsUltra is the ideal choice

for refiners wishing to maximize the production of light olefins, especially propylene from the FCC unit where very high levels of conventional additives would be required that would otherwise result in dilution of the circulating catalyst inventory. OlefinsUltra applications around the world continue to increase as the refining industry turns to ultra-high activity ZSM-5 additives to more costeffectively meet their light olefins requirements. Applications: Applications • • • •

Raise propylene yield for petrochemical applications Increase butylenes yield for alkylation, MTBE Increase gasoline pool octane and reduce sensitivity Maintain FCC gasoline octane while in an LCO maximization mode

Typical Properties Properties: ties OlefinsExtra

OlefinsMax

OlefinsUltra

70 < 0.1 5 0.76 75 0 8

100 < 0.1 5 0.74 75 0 8

180 < 0.1 5 0.74 75 0 8

Activity Relative to OlefinsMax (%) Sodium, wt% Davison Index ABD, g/cc APS, microns 0-20 microns,wt% 0-40 microns,wt%

Packaging: • • • •

350 lb steel drums 1 ton flow bins or super sacks 20 ton pneumatic tank trucks Preblended with fresh catalyst shipments

Technical Service: • • • • •

Selection of the optimal usage rate Assistance during additive testing Monitoring unit performance Analyzing equilibrium catalyst during the test period Injection system equipment

The information contained herein is based upon our testing and experience and is believed to be accurate. Since operating conditions may vary and since we do

not control such conditions, we must disclaim any warranty, express or implied, with regard to results to be obtained from the use of our products or with regard to application of Davison techniques.

For more detailed information on Davison's Light Olefins products and services, current propylene market analysis, as well as training modules and our technical library, please refer to the Light Olefins section in e-Catalysts.com.

INTERCAT Additive Addition System 50 - 200 ft3 Style 4, With IMS Controller. Installation Instructions & Utility Requirements Pre-Assembly Checklist. Before starting to assemble the system, check that all the parts are present and correct. The addition system shipment should contain the following parts: 1. The main vessel, complete with most piping attached. 2. The catalyst discharge line, shipped separately. 3. The loadcell skid, complete with dummy loadcells and real loadcells. 4. A couple of boxes of miscellaneous parts including: a) 2” re-inforced rubber loading hose b) Two 1” stainless steel flexible hoses c) The vessel manway cover and clamps d) A collection miscellaneous bolts, etc. 5. A crate containing the IMS Controller.

Step 1 - Addition System Assembly. A crane is normally needed for this part of the installation. •

Place the loadcell skid into its final location. Bolt the base plate to the ground using the holes at end of base plate arms. (See Photograph #1) The vertical leg protruding from the base will be used to mount the IMS Controller, and this should be set to face North, if at all possible.

•

Lower the vessel onto the loadcell skid, and bolt the legs to the loadcell mounting plates. Note that the vessel can be rotated on the base to face any direction required.

•

Attach the catalyst discharge line to the addition system as shown in Photograph #2. Mount the IMS Controller onto the stand provided on the 3” vertical pipe which protrudes from the base. Locate the IMS Controller door bolts and keys and keep in a safe location.

Step 2 - Piping Connections. •

Connect the plant air supply to the vessel using the supplied 1” screwed stainless steel flexible hose. (See Photograph #3.)

•

Connect the catalyst line from the addition system to the FCC unit using the supplied 1” flanged stainless steel flexible hose. (See Photograph #2) IMPORTANT NOTE! This hose must be run straight, in either a horizontal or a vertical direction, and must have no kinks in it whatsoever. This is very important to prevent erosion of the flexible hose. This line should be connected to the existing catalyst loading line to the regenerator. Additional transport air should be provided if the line size is increased above one inch.

•

Run a ½ to ¾ inch instrument air supply to the solenoid valves under the IMS Controller.

Page 1

Step 3 - Electrical Hookup. •

Connect both the addition system vessel and the base plate to ground (Earth).

•

Run a 110 VAC electrical power supply with earth (ground) connection to the IMS Controller. This supply should be run into the IMS Controller using the first port from the left on the bottom of the IMS Controller box. This supply should have an on/off switch local to the Controller, and should be wired to the fuses and ground (earth) connections on the left hand side of the terminal strip. The IMS Controller is normally shipped with wire tails already on these connections. (See Terminal Strip Diagram, attached.)

Step 4 - Instrument Hookups. •

Connect the loadcell wires to the IMS Controller. The three loadcell cables, one from each loadcell are routed through the base of the loader up into the 3 inch pipe which protrudes from the base. They emerge from this 3” pipe just below the IMS Controller. These cables need to be run in flexible conduit to the right hand open connector under the IMS Controller and connected to the terminal strip as follows: a) The three red wires each to a +EXC connector on the terminal strip. b) The three black wires each to a -EXC connector on terminal strip c) The three green wires (+SIG) each to a separate connection 3 on the bottom of one of the Loadcell Signal IS Barriers. d) The three white wires (-SIG) each to a separate connection 4 on the bottom of one of the Loadcell Signal IS Barriers. (The green and white wires from each loadcell cable should be connected to the same barrier.) e) All shielding to earth (ground). (See diagram of terminal strip, attached.) Note that the IMS Controller is shipped with small lengths of green and white wire shorting out connections 3 & 4 on the IS Barriers to earth. These wires are just there to protect the IMS during shipping, and must be removed before the loadcells are connected up. Note also that each loadcell is connected individually. The numbering of the loadcells will be determined during commissioning.

•

Install the IMS Power Supply. This power supply belongs inside the IMS Controller box, but has been removed for shipment. It is shipped inside a cardboard box which is located inside the IMS Controller, behind the bracket on the top right hand side of the controller. Remove the Power Supply from its box, and slot it into the connector just behind its shipping location, and use the same bracket to secure it in place.

•

Run ¼” flexible tubing from the solenoid valves under the IMS Controller to the Robin Valve and the ESD Valve. Three small bore flexible instrument air lines should be run from the IMS Controller to the valves on the base of the loader, as follows: a) Two lines should be run from the left hand solenoid valve under the IMS Controller to the Robin Valve on the base of the loader. The Robin Valve is the lower of the two valves mounted on the catalyst outlet line at the bottom of the addition system vessel (See Photograph #4.) Page 2

−

The top connection on the Robin Valve should be connected to Port No. 2 on the solenoid valve.

−

The bottom connection on the Robin Valve should be connected to Port No. 4 on the solenoid valve. (Note that this connection on the Robin Valve is 1/8 inch NPT.)

The ports on the solenoid valve are numbered, with Port No. 4 being the one that is closest to the electrical connection. b) One line should be run from the outlet of the solenoid valve on the right hand side of the air manifold under the IMS Controller to the pneumatic valve actuator which is attached to the ball valve immediately under the vessel cone. (The upper of the two valves mounted on the catalyst outlet line at the bottom of the vessel.) A stainless steel 3 way valve is normally fitted to the ball valve actuator, and the air line should be run to the top connection on this 3 way valve. (See Photographs #5 and 6) Note that this actuator is fitted so that the ESD ball valve closes on air failure. •

Hook up any wires connecting the IMS Controller to the refinery DCS System. (Note that these connections are completely optional, and are not required.) If these connections are to be made, the wires should all be run into the IMS Controller using the second port from the left on the bottom of the IMS Controller box. The available signals are as follows: a) 4-20 mA output signal for weight in vessel: Connect to terminals +/- AQ1 on terminal strip. b) 4-20 mA output signal for target addition rate: Connect to terminals +/- AQ2 on terminal strip. c) Common remote alarm indication: Connect to terminals +Q005 and -24 on terminal block. d) Online / Offline indication: Connect to terminals +Q004 and -24 on terminal block. e) 4-20 mA input signal for remote setpoint control. (This module is not normally fitted unless specifically requested.) Connect to terminals +/- AI1 on terminal strip.

Step 5 - Replacement of Dummy Loadcells. This step should only be carried out just prior to commissioning, when all other work is complete. A portable hydraulic jack is required for this step. •

The Addition System is normally shipped with dummy loadcells in place to ensure that the real loadcells are not damaged during shipment and installation. The real loadcells are strapped to the side of the base, and these are normally installed once all the mechanical work on the addition system is completed. Jacking points are provided on the addition system vessel legs to support the vessel while the loadcells are being replaced. It is very important that the loadcells are treated gently during this installation procedure. Note that the loadcells must be fitted with the arrows on the end pointing down. The writing on the labels should be the right way up.

IMPORTANT: No electrical welding should be carried out on the addition system once the loadcells are fitted in place. The loadcells are easily damaged by any stray current from the earth connection of an electrical welder.

Page 3

Step 6 - Pre-Startup Checks. These steps should only be carried out just prior to commissioning, when all other work is complete. •

Climb up the vessel ladder, and open the top hatch on the vessel. Reach inside and check that the trickle valve on the cyclone dip leg is free to move, and is seated properly (See Photograph #7). Note that this valve is sometimes taped in the closed position for shipping using duct tape. Take care not to drop any debris into the vessel during this procedure.

•

Visually check that the inside of the vessel is free from any foreign materials, then fit the vessel manway cover and firmly tighten the mounting clamps.

At this point, the system is ready for checkout, calibration and commissioning by your INTERCAT Technical Service Engineer.

Page 4

Appendix 1.

Addition System Utility Requirements. Plant Air There is one plant air connection required on this vessel. This is a 1” diameter line which is connected to the air pressure regulator manifold on the side of the loader. This supply is used for pressurizing the vessel, powering the vacuum eductor, and for carrier air. Design air 3 2 consumption is a maximum of 210 scfm (356 nm /hr) at 100 psi (7 kg/cm ) when the eductor is 3 running, and about 15 scfm (25 nm /hr) under normal operation. The supply line to the loader can normally be 1", but should be increased to 1.5" or 2" if the supply pressure is less then 70psi, or if the line length will exceed 30 feet.

Electrical Power There is one electrical power connection required by the INTERCAT Additive Addition System. This is a 110 or 200 Volt AC supply (200 Watt max) to the IMS Controller. This wire should be run into the IMS Controller using the first port from the left on the bottom of the IMS Controller box. This supply should have an on/off switch local to the Controller, and should be wired to the fuses and ground (earth) connections on the left hand side of the terminal strip.

Instrument Air There is one instrument air connection required on this vessel. This is a small bore (typically ½" or ¾" ) instrument air supply to the air filter on left side underneath the IMS Controller. The connection on the IMS is ¼" NPT. Instrument air consumption is negligible."

Page 5

Appendix 2 - Diagram of IMS Controller Terminal Strip.

Incoming Power should be connected to these connections. (Wire tails installed prior to shipping to indicate correct location.)

|

L1

O

L2

|

GRND Main Power Fuse L1 L1 L1

Ground Ground Ground

Ground Ground Ground

-24 -24 -24

+24 +24 +24

%I009 %I010 %I011 %I012 %I013 %I014 %I015 %I016

%I001 %I002 %I003 %I004 %I005 %I006 %I007 %I008

%Q005 %Q006 %Q007 %Q008

%Q001 %Q002 %Q003 %Q004

-%AQ01 -%AQ02 -%AQ03 -%AQ04 -%AI01

+%AQ01 +%AQ02 +%AQ03 +%AQ04 +%AI01

-5 -5 -5

+5 +5 +5

-15 -15 -15

+15 +15 +15

+EX1 -EX1

: : : : : 0

0

0

0

+EX1 +EX1 -EX1 -EX1 Relay for %Q004

Barrier: Loadcell #1 +/- Signal Barrier: Loadcell #2 +/- Signal Barrier: Loadcell #3 +/- Signal Barrier: + Excitation Barrier: - Excitation Barrier: Robin Valve Barrier: ESD Valve

Page 6

IMS Controller Terminal Strip Connection Diagram

Connect Loadcell Black and Red wires. Red wires to +EX1 Back wires to -EX1 One loadcell should be connected to each level of terminal strip.

Connect Loadcell Signal wires to these barriers. Green wires to connection #3 White wrires to connection #4 One loadcell should be connected to each barrier.

L2 L2 L2

Standard 110V power outlet for PLC Programmer.

Grounding Terminal

: : : : : 0

0

0

0

Appendix 3 - Construction Photographs 3

Photograph No.1 - 50ft Loader Loadcell Skid

Photograph No.1 - 200ft3 Loader Loadcell Skid

Page 7

Photograph No.2 - Catalyst Loading Line

Page 8

Photograph No.3 - Plant Air Inlet Connection

Photograph No.4 - Robin Valve Connections

Page 9

Photograph No.5 - ESD Valve Location

Photograph No.6 - ESD Valve Connections

Page 10

Photograph No.7 - Cyclone Trickle Valve The photograph below illustrates what the cyclone trickle valve looks like before installation.

Page 11

Appendix 4 - Process Connection Sketch

Page 12

ISBL

ATM.

OSBL

3" 3"

1½"

2"

10"

3" 3" Eductor

Load Cells A/B/C

2"

R1 R2 R3

1"

Loading Line

1"

4"

PI 1"

1"

1"

1"

1"

To FCC

Plant Air PI 1" FC

Instrument Air

½"

IMS Controller

TITLE

Additive Addition System with Cyclone - Style 4 DWG NO

DATE

23, April, 2001 By

MWB

SIZE

P&ID 4-01

A4

SHEET

REV

4 1 of 1