Graphite Heat Exchangers, Columns, Ejectors
GRAPHITE is an allotrope of carbon (softer than the gemstone diamond, but brittle) having crystalline form categorized as a non-metal that still conducts electricity. Synthetic Graphite is impregnated with resins (phenolic or PTFE) and is suitable for handling various corrosive applications. It offers excellent corrosion-resistance to many chemicals and possesses good thermal conductivity and resistance to thermal and mechanical shocks.
Apex Engineered Products is The Exclusive Representative of the Graphite India in North America
Impregnated Graphite Properties:
Properties | Blocks | Tubes | Density gm/cc | 1.8 – 1.9 | 1.8 – 1.9 |
|---|---|---|
Thermal Conductivity W/m2c | 170 – 213 | 74 – 89 |
Tensile Strength N/mm2 | 20 -24 | 27 -33 |
Flexural Strenght N/mm2 | 30 -36 | 45 – 56 |
Comprehensive Strength N/mm2 | 60 -70 | 75 – 90 |
Co-efficient of thermal expansion mm/mm/°C x 10-6 | 3 – 4 | 3 – 4 |
Permeability cm2/sec x 10-6 | 2 – 3 | 3 – 4 |
Product Range:
Equipment
- Graphite Heat Exchangers (Block / Shell & Tube)
- Graphite Columns
- Graphite Ejectors
- Graphite Pumps
- Acid Dilution & Cooling Units
- Sulfuric Acid Concentration Units
Process Systems
- HCl Synthesis Unit
- HCl Absorption Unit
- Dry HCl gas generation unit
Process Systems
- Engineering
- Maintenance and Repair
- Supervision of Erection & Commissioning
- Troubleshooting & Support
In addition to the accreditations listed at the bottom of this page, Apex can also meet the following product requirements: “CE” marking as per PED/2014/68/EU, Japan Pressure Vessel Class, KOSHA, DOSH, EAC, SANS 347, and many others. Please contact us for more details.
Did you know?
Graphite products are well established in sectors like:
CHLOR-ALKALI
RAYON
PAPER & PULP
CHLORINATED ORGANIC CHEMICALS
STEEL PICKLING
DYES & INERMEDIATES
DRUGS & PHARMACEUTICALS (API)
METAL PROCESSING
INCINERATION
AGROCHEMICALS, PHOSPHATE FERTILIZER & PHOSPHORIC ACID
POLYMERS LIKE VCM
BATTERIES & GELATIN
Other product lines such as Graphite Electrodes for the steel industry, Special Purpose Graphite, Glass Fiber Reinforced Plastics, Pipes and Tanks are also available upon request. Please speak to our Sales Engineer.
Graphite Heat Exchangers:
• Construction can be Monoblock, Cylindrical Polyblock, Cubical Polyblock
• Suitable material of construction can be offered for corrosive service on process and service sides
• Multi-pass arrangement enabling optimized design solution
• Process side hole diameter ranging from 8mm up to 35mm
Material:
• Impervious Graphite block and Graphite lateral chambers for process fluid
• Metallic Shell or Lateral chambers for service fluid. (Suitable Fluoropolymer or rubber lining can be provided if required)
• End chambers can be offered in Graphite and different materials like Plastic, Fluoropolymer, or Rubber lined carbon steel.
• Compact design resulting in less space requirement
• Simple construction resulting in ease in maintenance
• General design pressure rating: 6 bar g / Full vacuum
Applications as coolers, condensers, and interchangers.
• Surface area can be offered from 0.1 m2 up to more than 1000m2
• Maximum surface are aper block – 73m2
• Application and Pressure rating wise around 170 block models to provide optimized solutions.
• General design pressure rating up to 12 bar G / Full vacuum on process and service sides depending on block model.
Applications as coolers, heaters, condensers, heat exchangers, isothermal falling film absorbers, reboilers, evaporators
• Application and Pressure rating wise around 170 block models to provide optimized solutions
• Easy maintenance
• Design pressure rating up to 11 bar G / Full vacuum on process and service sides depending on the block model
Applications as coolers, condensers, heat interchangers, isothermal falling film absorbers
• Tube sizes available:
7/8″ ID x 1 1/4″ OD
1″ ID x 1 1/2″ OD
1 1/2″ ID x 2″ OD
• Surface area can be offered from 1.5 m2 up to 1500m2
• Genera Design pressure rating: 9 Bar G / Full vacuum on the process and 8 Bar G / Full vacuum on service side depending on the requirement. A higher pressure rating can be offered if requested.
• Tubes with carbon fiber reinforcement for improved strength
• Tube sheets with chromium oxide coating to resist erosion due to solid content in Phosphoric acid evaporators
• Impervious Graphite tubes, tube-sheets
• Metallic or Impregnated graphite baffles
• Domes in Impervious graphite or exotic materials (suitable Fluoropolymer or rubber lined carbon steel can be offered if required)
• Metallic shell (suitable Fluoropolymer or rubber lining can be offered if required
Applications as coolers, heaters, condensers, heat interchangers, isothermal falling film absorbers, reboilers, evaporators, quenchers
Recent Fabrications:
Top-Fired HCl Synthesis Unit
Graphite India Limited, Apex Engineered Products’ strategic partner, delivered the 10th in a series of HCl Synthesis units to a major Asian chemical producer. HCl
Phosphoric Acid Evaporator
Phosphoric acid evaporator supplied to an Asian customer Nearly 90% of Phosphoric acid produced is used to manufacture fertilizers. Shell & Tube Type Forced circulation
Graphite Polyblock-Type Heat Exchangers For Spin Bath Application
Two graphite polyblock type heat exchangers for spin bath application delivered to a major South-East Asian chemical producer. These graphite poly-block type heat exchangers offer
Made with Graphite
Graphite Columns
• Columns are available in Tray type or Packed type or Combination of both
• Tray types – bubble cap, turbo grid, sieve type
• Packed columns with variety of suitable internals (ceramic Intalox Saddles, graphite raschig rings)
• Column internal diameter ranging from 100 mm ID to 2400 mm ID
• General design pressure: 5 Bar G / Full Vacuum
Applications in absorption and distillation
Graphite Ejectors
• Single-stage and multi-stage depending on vacuum required
• Steam jet and liquid jet
• Capacity to ensure a vacuum of 0.5 Torr
• The ejector system can be supplied with surface condensers or mixing condensers
• Skid mounted unit
Graphite Pumps
• Flow rates of 1m3 /hr up to 200m3 /hr with a differential head of 400 meters
• Single mechanical seal and double mechanical seal (with cooling arrangement)
• All wetted parts are in Graphite
Acid Dilution & Cooling Units
• Units are offered for dilution of Sulfuric acid and Hydrochloric acid
• Compact arrangement of mixer and cooler
• Cooler in Polyblock type or Shell and tube type
• Unit is supplied with necessary accessories
Sulfuric Acid Concentration Units
• Units are designed and manufactured for producing sulfuric acid of around 705 strength from dilute acid having strength as low as 20%
• Unit can be single-stage or multi-stage depending on inlet acid concentration
• Unit consists of thermosiphon reboilers, gas liquid separators, condensers, ejector system, product acid cooler
• With multiple effect concentration, the steam economy can be achieved, thereby reducing operating cost
Did you Know?
Apex Engineered Products offers industry-leading after-sales service support to our customers.
Our technicians and engineers provide on-site support for the supervision of erection, commissioning of equipment, and trouble-shooting, repairing, and training. See our Services Page for more information.
HCl Synthesis Unit
• Top fired unit to produce commercial grade 30% to 37% Hydrochloric acid with minimum free chlorine content OR Dry HCl gas in Chlor-Alkali, Paper & Pulp, Metal Extraction industry.
• Complete skid-mounted system consisting of equipment, ancillary equipment, interconnecting piping, instrumentation and necessary automation.
• Capacity ranging from 1 TPD up to 200 TPD (100% HCL basis)
• Efficient burner design to ensure smooth functioning with Chlorine purity as low as 21%
• Suitable for moist feed conditions
• HCl in vent < 5 ppmv
• Heat recovery in the form of Steam generation
• Online cleaning/washing facility of burner / Automatic start-up / Start-up with compressed air
• Turn-down capacity of 25%
• Supplied more than 100 HCl Synthesis units worldwide
Material:
• Combustion chamber (furnace), falling film absorber & Burner too in – Impervious Graphite (steel jacketed)
• Tail Gas Tower – Impervious Graphite
Is Graphite Technology Right For My Plant?
SPEAK WITH OUR sales engineers to find out
HCl Absorption Unit
• Absorption of HCl /HF / HBr gases required in Monochloro benzyne / Sulphate of Potash production / MDl-TDl/CPW etc.
• Falling film absorbers in Shell & tube and Polyblock construction
• Product Hydrochloric acid concentration ranging from 5% to 37%
• Absorbers can be designed to handle dilute gas [for less than 2% to 3%]
• Absorption can be continuous as well as in batch operation
• Complete skid-mounted system consisting of Falling film absorber, Tail gas tower (Packed bed scrubber), Intermediate tank, Recirculation cum product transfer pump, interconnecting piping, instrumentation, and necessary automation
Dry HCl Gas Generation Unit
• Commercial grade 30% to 38% Hydrochloric acid is used to produce dry HCl gas via 2 (two) routes based on byproduct:
225 HCl Azeotropic Solution Byproduct
– or –
1% HCl solution Byproduct (required in API, chloro-sulphonic acid & specialty chemicals)
• Dry HCl gas purity is more than 99.9%
• Capacity ranging from 25Kg/hr to 5000 Kg/hr of HCl gas
• Maximum operating pressure of HCl gas produced by 22% HCl solution byproduct route is 3 Bar G
• Maximum operating pressure of HCl gas produced by 1% HCl solution byproduct route is 1 Bar G
• Complete skid-mounted system consisting of equipment, ancillary equipment, interconnecting piping, instrumentation, and necessary automation
Trusted by Customers World-Wide:
Asia
- Bangladesh
- China
- India
- Israel
- Japan
- Jordan
- Malaysia
- Oman
- Philippines
- Qatar
- Saudi Arabia
- Singapore
- South Korea
- Taiwan
- Thailand
- Turkey
Europe
- Austria
- Belgium
- Denmark
- France
- Germany
- Greece
- Hungary
- Italy
- Netherland
- Norway
- Poland
- Portugal
- Spain
- Sweden
- Switzerland
- United Kingdom
Americas
- Argentina
- Brazil
- Paraguay
- Peru
- Uruguay
- United States
North Africa
- Egypt
- Morocco
- Senegal
- South Africa
- Tunisia
Australia
- Australia
Graphite Blocks
Raw graphite blocks are used in the manufacturing of heat exchangers.
Graphite Materials
Graphite materials used in the manufacturing of heat exchangers.
Machining & Drilling
Machining and drilling of graphite material.
Machining & Drilling
Equipment used in machining and drilling of graphite.
Graphite Impregnation
Graphite impregnation facility.
Finished Graphite Blocks
Finished graphite blocks.
Finished Graphite Blocks.
Finished graphite blocks
Automated HCL Synthesis Unit
Automated Graphite HCL Synthesis Unit.
Dilution & Cooling
Graphite Dilution & Cooling
HCL Synthesis Units
Graphite HCL Synthesis Units.
Packing & Despatch
Packing and despatch of graphite equipment.
Repair & Reconditioning
Graphite equipment repairs and reconditioning.
