In today’s industrial environment, maintenance & energy cost form a large part of the operating cost. In case downtime and/or equipment design does not permit mechanical cleaning the most cost-effective solution is Chemical Cleaning.
PSC/OZEST’s key is of providing quality chemical cleaning rest in the engineered selection process. We have the largest variety of solvent systems, including chelants, organic solvents, inhibitors, alkaline cleaners, organic acid emulsions, mineral acids, and detergents from which to develop cost-effective chemical cleaning processes.
Typical Applications:
■ Boilers
■ Piping
■ Heat Exchangers
■ Evaporators
■ Cooling Water Systems & Towers
■ Reactor Jackets
■ Process Vessels
Metallurgies & Others Handled
■ Admiralty Brass
■ Copper
■ Carbon Steel
■ Austenitic Stainless Steels (300 Series)
■ Martensitic Stainless Steels (400 Series)
■ Inconel
■ Monel
■ Titanium
■ Zirconium
■ Borosilicate Glass
PSC/OZEST is fully equipped to handle all your chemical cleaning needs at a short notice with Circulation Pumps rated from 400 – 1500 gpm @ up to 150 psi; Holding Tanks from 1,000 – 50,000 gallon capacity; Hypalon Steel Braided Hoses, On-Site Laboratory Services.
Chemical Cleaning is proven, efficient & widely accepted method for removal of deposits formed in various refineries and petrochemical plants equipment.
There are two main types of acids used in dissolving contaminants or scales:
Mineral Acids
■ Hydrochloric
■ Sulfamic Acid
■ Nitric Acid
■ Phosphoric Acid
■ Sulfuric Acid
Organic Acids
■ Citric Acid
■ Ammoniated Citric Acid
■ Oxalic Acid
■ Glacial Acetic Acid
During the chemical cleaning Inhibitors are used. The inhibitors form film-on-surface of metal in order to protect parent metal from possible acid attack. Inhibitors do not change the rate of reaction of acid on the scale; they inhibit the metal from reacting with the acid. Different types of inhibitors are used in the industry based on the acid selection.
Advantages of Chemical Cleaning
■ It can be performed on site without disassembling & moving equipment, saving enormous time, labor & associated costs.
■ It eliminates the need for physical entry of personnel thus offering a much safer alternative.
■ It conditions the process surface to reduce future fouling.
■ It can handle systems which are difficult to reach by other conventional cleaning methods such as hydro- jetting.
Tuesday, July 15, 2008
MODERN TECHNOLOGIES OF BUNDLE PULLING
Bundle Pulling
The Truck Mounted Bundle Puller (TMBP) can be quickly mobilized to the site and is a fully self-contained bundle extractor to pull and push back horizontal tube bundles which are located at a height between 680 and 6700 mm and with a maximum weight of 15 tons.
Due to its unique and patented design, this machine can also be used to transport the bundles to the cleaning slab. Therefore it is highly appreciated in all the refineries and in the petrochemical sector.
The main advantage is that during the pulling/pushing operation you do not need a crane any more, which will reduce your cost and bring your downtime back to a minimum!
Less organization is needed!
The truck is allowed to drive on the public road, therefore making it a versatile and efficient tool. Even in a difficult to reach place with a crane, e.g. when there is a pipe frame above the heat exchanger, the Truck Mounted Bundle Puller can still do the job.
Once the extractor is in position and the butt plates are positioned against the shell flange, the extractor can exert a force of 50,000 Kg, enough to extract even the most obstinate bundle. After the initial break out, the hydraulic pulling car will be hooked to the pipe plate and the extractor can pull out the bundle in one continuous stroke. Once the bundle is resting on the truck, it can be transported to the cleaning slab and can be off loaded by crane.
In case the Truck Mounted Bundle Puller cannot be used PSC/OZEST can provide an Aerial Mounted Bundle Puller.
The hydraulic tube bundle extractor is a self-contained unit, which is easily lifted into position by one crane. Once in position, and clamped to the shell flange of an exchanger, the extractor can exert a persuasive force of 50,000 kgf, enough to break out even the most obstinate tube bundle.
PSC OZEST Aerial Mounted Bundle Puller is 8.000 meters long and weighs 7 ton. It is suitable to use for tube bundles with a maximum diameter of 2.000 meters; length of 8.000 meters and weight of up to 45 ton.(for tube bundles with larger dimensions additional equipment / accessories are to be added).
The Truck Mounted Bundle Puller (TMBP) can be quickly mobilized to the site and is a fully self-contained bundle extractor to pull and push back horizontal tube bundles which are located at a height between 680 and 6700 mm and with a maximum weight of 15 tons.
Due to its unique and patented design, this machine can also be used to transport the bundles to the cleaning slab. Therefore it is highly appreciated in all the refineries and in the petrochemical sector.
The main advantage is that during the pulling/pushing operation you do not need a crane any more, which will reduce your cost and bring your downtime back to a minimum!
Less organization is needed!
The truck is allowed to drive on the public road, therefore making it a versatile and efficient tool. Even in a difficult to reach place with a crane, e.g. when there is a pipe frame above the heat exchanger, the Truck Mounted Bundle Puller can still do the job.
Once the extractor is in position and the butt plates are positioned against the shell flange, the extractor can exert a force of 50,000 Kg, enough to extract even the most obstinate bundle. After the initial break out, the hydraulic pulling car will be hooked to the pipe plate and the extractor can pull out the bundle in one continuous stroke. Once the bundle is resting on the truck, it can be transported to the cleaning slab and can be off loaded by crane.
In case the Truck Mounted Bundle Puller cannot be used PSC/OZEST can provide an Aerial Mounted Bundle Puller.
The hydraulic tube bundle extractor is a self-contained unit, which is easily lifted into position by one crane. Once in position, and clamped to the shell flange of an exchanger, the extractor can exert a persuasive force of 50,000 kgf, enough to break out even the most obstinate tube bundle.
PSC OZEST Aerial Mounted Bundle Puller is 8.000 meters long and weighs 7 ton. It is suitable to use for tube bundles with a maximum diameter of 2.000 meters; length of 8.000 meters and weight of up to 45 ton.(for tube bundles with larger dimensions additional equipment / accessories are to be added).
DECONTAMINATION SPECIALIST
Chemical Decontamination
With PSC OZEST Life Guard™ decontamination programs, benzene and other hazards associated with refinery and petrochemical processing can be eliminated in a fraction of the time normally associated with a shutdown. PSC OZEST provides technical refinery expertise to enhance our turnkey service and to insure that every detail is properly addressed. The processes apply to crude units, FCCU units, lube oil plants, ethylene and butadiene plants as well. Our programs combine unique, environmentally safe chemical products with sate-of-the-art mobile pump and filtration systems. Furthermore, we can customize the service for various plant equipment including refinery distillation and fractionation towers, accumulators, drums, reactors and exchangers. It also safely removes Pyrophoric Iron Sulfides and residual H2S using second stage process that takes only 4 – 6 hours in most cases.
The Life guard chemical was developed and patented by PSC.
In general the client will determine what equipment within the unit is to be decontaminated. PSC OZEST will design a detailed procedure with regards to the most cost effective circulation loops. Upon approval of the detailed procedure PSC OZEST ties in the pump/filtration equipment and other accessories. A special formulated decontaminating solution is circulated for several hours at rates up to 2,000 gpm, filtering out solids down to 40 microns, if necessary.The emulsion that is formed is then broken down in a fracturing tank using a demulsifier to allow recovery of the hydrocarbon that is removed from the process equipment. The subsequent aqueous phase is discharged to the plant’s API or waste treatment facility. PSC OZEST closed loop system Life Guard™ makes EPA and OHSA compliance much easier to achieve.The major benefits are:
■ Zero LEL
■ Zero H2S
■ Less than 0.5 ppm Benzene
■ No steaming out or Nitrogen purging required
■ Less heat exchangers to be pulled during the shutdown, if included in the process.
■ Time saving.
■ Pyrophoric materials will be oxidized
■ Partial scales removal (when scale is bounded with hydrocarbon)
The Life Guard is
■ Neutral
■ Biodegradable
■ Has no impact on any material
■ Very powerful emulsifier
■ Can be easily Broken back into Oil & Water
■ More than 2000 projects worldwide including Saudi Arabia
■ Approved by CSDC ( Aramco ) & used in Ras Tanurah Ref, Riyadh Ref, Jeddah Ref, Yanbu Ref, Lub Ref, Sam Ref , Sas Ref, etc.
PSC OZEST offer more than a chemical-cleaning vendor does. We take a comprehensive approach, as if the refinery belongs to us. OZEST walks every job and with the continuous support of PSC designs the most efficient circulation loops to facilitate the decontamination of entire crude units and coker units. OZEST’s customers offer the best support to the effectiveness of our decontamination processes.
With PSC OZEST Life Guard™ decontamination programs, benzene and other hazards associated with refinery and petrochemical processing can be eliminated in a fraction of the time normally associated with a shutdown. PSC OZEST provides technical refinery expertise to enhance our turnkey service and to insure that every detail is properly addressed. The processes apply to crude units, FCCU units, lube oil plants, ethylene and butadiene plants as well. Our programs combine unique, environmentally safe chemical products with sate-of-the-art mobile pump and filtration systems. Furthermore, we can customize the service for various plant equipment including refinery distillation and fractionation towers, accumulators, drums, reactors and exchangers. It also safely removes Pyrophoric Iron Sulfides and residual H2S using second stage process that takes only 4 – 6 hours in most cases.
The Life guard chemical was developed and patented by PSC.
In general the client will determine what equipment within the unit is to be decontaminated. PSC OZEST will design a detailed procedure with regards to the most cost effective circulation loops. Upon approval of the detailed procedure PSC OZEST ties in the pump/filtration equipment and other accessories. A special formulated decontaminating solution is circulated for several hours at rates up to 2,000 gpm, filtering out solids down to 40 microns, if necessary.The emulsion that is formed is then broken down in a fracturing tank using a demulsifier to allow recovery of the hydrocarbon that is removed from the process equipment. The subsequent aqueous phase is discharged to the plant’s API or waste treatment facility. PSC OZEST closed loop system Life Guard™ makes EPA and OHSA compliance much easier to achieve.The major benefits are:
■ Zero LEL
■ Zero H2S
■ Less than 0.5 ppm Benzene
■ No steaming out or Nitrogen purging required
■ Less heat exchangers to be pulled during the shutdown, if included in the process.
■ Time saving.
■ Pyrophoric materials will be oxidized
■ Partial scales removal (when scale is bounded with hydrocarbon)
The Life Guard is
■ Neutral
■ Biodegradable
■ Has no impact on any material
■ Very powerful emulsifier
■ Can be easily Broken back into Oil & Water
■ More than 2000 projects worldwide including Saudi Arabia
■ Approved by CSDC ( Aramco ) & used in Ras Tanurah Ref, Riyadh Ref, Jeddah Ref, Yanbu Ref, Lub Ref, Sam Ref , Sas Ref, etc.
PSC OZEST offer more than a chemical-cleaning vendor does. We take a comprehensive approach, as if the refinery belongs to us. OZEST walks every job and with the continuous support of PSC designs the most efficient circulation loops to facilitate the decontamination of entire crude units and coker units. OZEST’s customers offer the best support to the effectiveness of our decontamination processes.
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