UOP-Proposed Layout Critical Piping Rev 00

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UOP LLC 25 East Algonquin Road Des Plaines, Illinois 60017-5017 USA

PROJECT SPECIFICATION 974901 840 SHEET 1

PROPOSED LAYOUT CRITICAL PIPING

840-300-5840-0Form QUA-04-5

Other specifications UOP Standard Specification: referenced in this UOP Standard Drawing: specification: UOP Project Specification: 974901-201, -304

REV DATE BY APVD REV DATE BY APVD 0 30OCT13 APG AKT

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Fixed-Bed Platforming Process Unit

1. Drawing List

Number Revision Title 974901-840-01-A1 0 Proposed Plan and Isometric View of Reactor Transfer Piping

2. General Notes

2.1 The purpose of this drawing is to indicate a suggested layout of the transfer piping in the reactor/heater/combined feed exchangers area. UOPs hydraulic calculations have been based on this proposed layout. UOP desires to minimize the piping loads on the reactor nozzles by taking the thermal movements into the heater.

2.2 The dimensions, elevations and orientations shown on this drawing are approximate and may vary to suit the actual equipment and plot arrangement.

2.3 The elevations of all equipment shown on UOP Drawing 974901-840-01-A1 are estimates. Determining the final elevations of all equipment is the responsibility of the customer/contractor. The final reactor tangent line elevation is to be determined by the contractor considering the future design of the CCR section.

2.4 The front face of the Combined Feed Exchangers Outer Diameter is located 50 ft (15 m) from the face of the heaters in compliance with U.S. insurance industry standards. The CFEs may be located closer to the face of the heaters if permitted by local codes and if the resulting transfer line layout meets flexibility requirements. The lateral location of CFEs structure with respect to the Charge Heater shall be determined by customer/contractor. The final location of the CFEs is the responsibility of the customer/contractor.

2.5 UOP desires a minimum reactor-to-heater spacing to minimize pressure drop and cost. This distance shall accommodate the width of a small pipe rack. Typical reactor front face to heater front face dimension is 30 ft (10 m). Contractor shall determine the final distance between the face of the heaters and the reactor centerline. The length and width of the reactor structure shown on UOP Drawing 974901-840-01-A1 are 19 ft (5.8 m) greater than the largest reactor diameter. This is based on the reactor support skirt being 7 ft (2.1 m) larger in diameter than the bottom reactor diameter and also leaving 6 ft (1.9 m) of clearance between the reactor skirt support and the outer edge of the structure.

2.6 The future CCR structure must be located as close to the Reactors as possible in order to minimize catalyst attrition during catalyst transfer between the Reactors and the future CCR Regenerator.

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2.7 The customer/contractor is responsible for setting the final equipment layout. The thermal movements of the heater header and transfer piping shall be based on the customers final equipment layout, not on this proposed layout. If the final equipment layout is different than what is shown on this UOP drawing, the customer shall inform the contractor/heater vendor immediately as the new movements will affect the heater design. The final configuration of the transfer piping, including all piping supports, shall be the responsibility of the contractor.

2.8 The final unit hydraulics shall be based on the final configuration as set by the contractor and is the responsibility of the contractor.

2.9 Contractor shall determine thermal movements of the transfer lines into the heater at the manifold terminal connections using the temperatures listed in the temperature table on UOP Drawing 974901-840-01-A1. Contractor shall transmit the calculated movements to the heater vendor. The use of limit stops on lines entering the heater(s) shall be minimized to minimize the forces and moments at the reactor flanges. When wicket-style heaters are used:

Limit stops on the spring support assembly in the x-plane (as shown on UOP Drawing 974901-840-01-A1) are recommended.

The use of Barco struts (or equivalent) is recommended to force movement into the z-direction (into the heater). Locate the struts at the bottom of the elbow closest to the heater.

2.10 Special consideration shall be given to thermal displacements, reaction displacements, and externally imparted displacements, as well as their cumulative effects, on the transfer piping system.

2.11 UOP recommends that heater manifold headers are designed to accept all or a majority of the resultant movements. To achieve the optimum design, the amount of total movement to be absorbed by the heater manifold headers and the actual amount of total movement to be absorbed by the connecting transfer piping is the mutual responsibility of the contractor and the heater vendor.

2.12 The reactor inlet and outlet nozzles shall be Class 600, as indicated on UOP Drawing 974901-304-10-A1.

2.13 The final orientations of the outlet nozzles, the setting of which is the responsibility of the customer/contractor, establish the orientation of the reactor internals. It is the responsibility of the contractor to inform the reactor vendor and reactor internals vendor of the final outlet nozzle orientations.

2.14 Heater loads shall be supported by the heater structure. Transfer line loads shall be supported by the reactor structure, with consideration to taking part of the horizontal piping load to the first heater spring, to minimize the load from the long horizontal piping runs on the heater structure. The final determination as to how the transfer piping load is supported is the responsibility of the contractor.

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2.15 UOP recommends that the contractor create a single pipe stress model (such as CAESAR), which includes the heater coil, before preparing the heater requisition. For the heater coil portion of the model, the contractor shall assume the spring supports on the heater manifold are spaced every 15 ft (5 m). The heater vendor shall review the model. Then the contractor and heater vendor shall work together to finalize the piping layout and heater coil design. The contractor shall create a final pipe stress model on the transfer piping and the heater coil based on the final design.

2.16 Wind and earthquake bracing shall not interfere with thermal growth of the piping components. Typical spacing between braces is 30 ft - 45 ft (9m 14 m). The contractor is responsible for determining the final number and spacing of the wind and earthquake braces.

2.17 Pipe elbows shall be long radius whenever possible to minimize piping pressure drop. Use short radius elbows only when it is absolutely impossible to use long radius elbows. Mitered bends may be used as an acceptable alternative to pipe elbows.

2.18 Provide constant springs for the transfer line support. Optimal spring loads are estimated to be 15,000 lbs 20,000 lbs (7,000 kg 9,000 kg). The spring range shall be a minimum of 110% of calculated movements. The support attachment shall be at least 250mm (10 inch) from longitudinal seam weld. Provide corrosion resistance coating on the spring supports.

2.19 There is typically an expansion loop in the piping between the last reactor and the combined feed exchangers. It is the responsibility of the customer/contractor to ensure the routing of this piping does not compromise access to the reactors, including manways. This expansion loop shall not contain any low points or pockets where liquid may accumulate. See Figures 1, 2 and 3 on sheet 6 of this Project Specification for examples of acceptable and not acceptable examples of the expansion loop piping.

2.20 The use of piping stops is recommended on the Reactor 3 Outlet to Combined Feed Exchangers line to minimize the loads on the reactor and exchanger nozzles. UOP assumes piping stops will be used, which is why the Reactor 3 Outlet nozzle is orientated perpendicular to the reactor structure and not at an angle.

2.21 For heater requirements, see UOP Project Specification 974901- 201.

2.22 Heater manifold operating temperature shall be assumed to be the same as the piping for the pipe stress model calculations.

2.23 The design temperature for the inlet and outlet transfer lines shall be 1020 F (549 C).

2.24 Longitudinal welds on the transfer piping shall be offset by 45 degrees between pipe sections.

2.25 Expansion joints are not allowed in the transfer lines between the heaters, reactors and combined feed exchangers.

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2.26 Contractor shall evaluate using 2 Cr for line savings, including field welds. Contractor shall select the transfer line metallurgy based on an evaluation of the installed cost, including field welds. Acceptable transfer line metallurgies are 1 Cr and 2 Cr.

2.27 The routing of the line from the CFEs outlet to the Charge Heater inlet is the responsibility of the customer/contractor. It is the responsibility of the customer/contractor to ensure the routing of this piping does not compromise access to the heaters, reactors, or other equipment in the area it is routed through. The piping shall not contain any low points or pockets where liquid may accumulate.

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3. Temperature Cases

These descriptions refer to the cases listed in the Temperature Table on UOP Drawing 974901-840-01-A1.

3.1 Normal Operating: These are the expected temperatures during normal operation.

3.2 Startup: During startup, the temperature of the reactor shell and the outlet piping will be approximately 300F (167C) cooler than the reactor inlet piping temperature.

3.3 Cooldown: During the cooldown case, the temperature of the reactor outlet piping will be approximately 150F (83C) hotter than both the reactor shell and the reactor inlet piping temperature.

3.4 Emergency Shutdown: This case assumes all process flow has been stopped. The reactor shell remains at 1020F (549C). The reactor inlet and outlet piping temperature are 30F (17C) lower than the reactor outlet operating temperature.

3.5 Restart after Emergency Shutdown: The reactor shell temperature remains at 1020F (549C). The reactor inlet and outlet piping shall be 395F (220C) lower than the reactor shell temperature. This case models the restart after Emergency Shutdown.

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UOP-Proposed Layout Critical Piping Rev 00