965# Series Catalyst Profiler Multipoint Thermocouple
- Our advanced multipoint temperature sensors provide reliable monitoring of catalyst conditions.
- Improves the performance and output of your catalytic processing unit
- Adds to your refining margins
- Suitable for hydroprocessing and other bed type reactors:
- HYDROTREATERS
- HYDROCRACKERS
- CCR
- AROMATICS
- COSHIFT
Temperature measurement systems for monitoring catalyst multipoint temperature sensors are a vital aspect of a hydrocarbon reactor. The atypical reactor in a refinery such as a hydrotreater would employ such temperature measuring sensors in the catalyst bed, popularly known as Multipoint Reactor thermocouples.
Pyro Electric Instruments Goa, India, specializes in advanced multipoint temperature sensors (multipoint thermocouple) for catalyst beds, by using the flexible multi-junction thermocouple technology to generate a profile of temperature. Such a technology can be employed in all the catalyst bed reactors for DHT, VGO, DHDS, and CCR plants.
Pyro Electric’s CATALYST PROFILER multipoint system consists of one or more thermocouple sheaths, which can provide between 2 to 9 measuring points on each sheath. Depending on the process connection flange size, the catalyst profiler can employ upto 10 thermocouple sheaths or 80 sensing points through one nozzle, and spread over the catalyst bed.
The thermocouple sheaths have a robust Mineral Insulated construction and are directly TIG welded to the process flange. These sheaths exit through the secondary sealing containment chamber and terminate into a Junction box directly or remotely.
The thermocouple sheaths can be provided special ceramic to metal cold end sealing to ensure leak-proof sheath design and close any possible leakage paths through the Mineral insulated sheath.
The sheath’s swaged design allows for a higher diameter in the welding zones, thereby improving the weld joint reliability. The swaged design of the sheath as well cuts down heavily on the number of weld joints due to avoidance of intermediate feed through sleeves at weld points.
The Catalyst Profiler comes with a complete in-reactor installation kit consisting of
– cleats for welding onto the reactor wall,
– brackets and support structures
These kits are worked on right from concept & design to installation and site support, and supervised by our team of site engineers
Every component & manufactured product is 100% tested for performance & reliability at our facility in Goa. Special attention is given to
aspects such as
- PMI
- Thermocouple accuracy and characteristics
- Weld joint integrity by hydro and pneumatic pressure test, alongwith Dye Penetrant test
- Sheath integrity test
- 100% material traceability
Complete In-reactor Installation Structure For:
Vertical Mounting of Thermocouples
This arrangement can replace the ‘spider-web’ configuration in many cases, however, is also ideal in cases of hot junctions located in different axis and plane (such as spiral arrangement).
In such a design, the vertical support structure allows for routing the thermocouples along the length of the reactor and generating a hot junction profile which is more dense compared to the concentric design.
Circular Concentric mounting of Thermocouples
This arrangement is typically suited in bed type reactors wherein the measuring points are located in a single axis fashion.
In such a case, the ‘spider-web’ configuration of the support structure locates the hot junctions at various elevations in the SAME plane.
Catalyst profiler Thermocouple Assembly triumph over regular Multipoint
Thermocouple Assembly
- Catalyst profiler Multipoint Thermocouple assembly comprises of one or more mineral insulate Thermocouple cable with several hot junctions along the length.
- Assembly can be designed to provide several sensing points to measure the Temperature inside the vessel.
- Each sensing point is independent & isolated from one another & ungrounded from
sheath. - Seamless sheath along the entire length ensures usage at very high operating
pressures. The welded end of the sheath is checked by N2 pressure test at 100 Bar. - Welded to mounting flange & provided with secondary containment chamber to ensure safe & reliable operation for use in high pressure vessels.
- Sensing points can be placed anywhere inside the vessel or catalyst bed, with minimum mounting hardware.
- Catalyst profiler Multipoint Thermocouple assembly can be designed for use on Retrofit vessel or on Reactor or on any other
- hydrocarbon storage equipment & our scope could also include design, supply, installation & commissioning of the temperature profiling system.
- Can be supplied with 2-Wire Temperature Transmitter of reputed Make with HART, Fieldbus or Profibus protocol
| Thermocouple sheath ‘OD’ | No of Conductors | Simplex sensing Points | Duplex Sensing Points | Minimum Sheath thickness in mm | |
| mm | Inches | ||||
| 9.5 | 3/8″ | 16 | 8 nos | 4 nos | 1.5 |
| 9.5 | 3/8″ | 12 | 6 nos | 3 nos | 1.5 |
| 9.5 | 3/8″ | 8 | 4 nos | 2 nos | 1.5 |
| 9.5 | 3/8″ | 6 | 3 nos | 1.5 | |
| 9.5 | 3/8″ | 4 | 2 nos | 1 nos | 1.5 |
| 12.7 | 1/2″ | 18 | 9 nos | 1.5 |
| SRL | TYPICAL PARTS DESCRIPTION | TYPICAL DIMENSION / SIZE | TYPICAL MATERIAL | TYPICAL QTY |
| 1 | Junction Box, Ex-proof IIC & W/p to IP:66 | – | Die cast Al | 01 |
| 2 | Terminal Strip, 2 Rows of 20 terminals each | 2.5 Sq mm | – | 40 |
| 3 | Nipple | 2” NPT(M) X2” NPT (M) | SS 316 | 02 |
| 4 | Union | 2” NPT (F) X2 NPT (F) | SS 316 | 01 |
| 5 | Reducer | 3” x 2” | SS 316 | 01 |
| 6 | Pipe for containment chamber | 3” Sch 80, 120 mm long | SS 321 | 01 |
| 7 | Blind Flange | 6” 1500# RF | ASTM A182 F3321 | 01 |
| 8 | Feed thru’ | OD=12.7 | SS 321 | 06 |
| 9 | TC sheath, MI, type ‘K’, 9.5, with 3 nos duplex sensing points | OD=9.5 | SS 321 | 03 |
| 10 | Flange | 1.5” 1500#RF | A182 F321 | 01 |
| 11 | Monoflange Manifold with block & bleed Value | 1.5” 1500# RF | A182 F321 | 01 |
| 12 | Pressure Gauge (Range: 0 to 160 kg Cm2) | – | – | 01 |
| 13 | Pipe | 1/2” Sch 160, 70 mm long | SS 321 | 01 |
Site Support Activities Offered By Us For Catalyst Profiler Thermocouples
Pyro Electric Instruments Goa – India offers complete assistance for site installation, supervision and satisfactory handover of the Catalyst Profiler thermocouples. The Catalyst Profiler site support team consists of
- senior engineer with an experience of over 10 years – Head of the team
- A welder
- 3 fitters / helpers
The site support team is guided by the internal OHSAS guidelines of the Company
driven by ISO 18001. The team is equipped with PPE at all times
ACTIVITIES undertaken as a part of the package by Pyro Electric as a Reactor thermocouple vendor :
- Safety Induction and Orientation
- Meeting with Mechanical contractor at the project site, for scheduling the installation
- Meeting with the customer and licensor.
- Preparation of a plan of installation activity and the Inspection plan
- Identification and marking of the points of installation inside the reactor.
- Welding of brackets on the wall
- Fixing of brackets on the arms, and then arms to the circular support.
- MARKING of Hot junction locations on the support as per requirements
- Functional check of the thermocouples before installation
- Straightening of MI thermocouple near nozzle
- ENSURE installing the flange gasket before pushing the thermocouples inside the nozzle
- Guide the MI thermocouples to its locations inside the reactor onto the brackets
- Bolt the flange
- Functional test of Thermocouples – mV output and response time checking
- Offer final inspection to Licensor
