The ErichHahn OBP bitumen production plant is designed to produce road bitumen from the bottom product of vacuum distillation of fuel oil (tar) by oxidizing it in column and tubular type devices and subsequent compounding of the overoxidized bitumen.
The plant can operate continuously and is easily switched to produce different grades of bitumen and when the group composition of tar changes, for example, a new tar composition.
OBP Advantages
Plant capacity up to 50 t/h.
Modular design and high-tech equipment allow for quick implementation of the units both in equipping new plants and in upgrading existing production facilities.
• Oxidation column
• Heat exchanger unit
• Intensive oxidation unit (with tubular reactor)
• Gas cooling and separation unit
• Incinerator and heat carrier heating unit
• Air preparation unit
• Intensive heating tank (for storing plasticizer)
• Feed and recirculation unit (including flow meters for ensuring control and precise dosing of liquid components)
• Additive feed unit (orthophosphoric acid, surfactant)
• Quality control unit
• Black diesel storage unit
• Central power supply unit
• Operator room
Why OBP
The technology for introducing components allows for the use of all currently known modifiers and special additives (including rubber crumb). The design of the unit provides for a flow and cyclic operation mode.
Other Plants
Review Details For Technical Specifications
Another type of OBP is OBP-25.
The ErichHahn OBP-25 unit is designed to produce bitumen from tar (residual product of vacuum distillation of fuel oil) by reacting it with atmospheric oxygen in column and tubular reactors.
The ErichHahn OBP-25 unit is designed to process various types of tar, regardless of its viscosity, softening point (SST), and ensures the production of the entire range of bitumen in continuous mode.
Thanks to the special design of the ErichHahn column, the presence of a tubular reactor (for intensive reaction) and the recycling process, the ErichHahn OBP-25 unit meets all the requirements for bitumen in Russia and Europe.
The modular design and high-tech equipment allow for the rapid implementation of the unit both in equipping new and in modernizing existing production facilities.
Oxidation Column
The column is designed to oxidize the tar supplied to it by mixing with crushed air bubbles.
It is a hollow cylindrical device equipped with dispersers for distributing the crushed air bubbles over the column cross-section in order to increase the specific contact surface with the tar, and a mixing device to intensify the oxidation process.
The column is equipped with a mixing device, service platforms and comprehensive thermal insulation.
Heat Exchanger Unit
It is a modular block container, inside which heat exchange equipment is placed to maintain the required temperature regime of the technological process and equipment for supplying and circulating the coolant of the oil system, as well as all the necessary piping and shut-off and control valves.
Intensive Oxidation Unit
It is designed to achieve the required product quality. It is a modular block container, in the upper part of which tubular reactors with static mixers and degassers are located, in the lower part there is equipment for recirculation of underoxidized tar and delivery of finished bitumen. Underoxidized raw materials enter the tubular reactor block, in which static mixers are installed to increase the contact surface of the product and air.
Gas Cooling and Separation Unit
The unit consists of air cooling devices and separators, which are compactly located inside modular block containers. The air cooling device receives a steam-gas mixture, which is removed from the upper part of the oxidation column. The cooled mixture enters the separator, where the phases are separated.
Incinerator and Coolant Heating Unit
After separation, gases (nitrogen, carbon monoxide and dioxide, oxygen residues) are sent to the incinerator block for disposal. The resulting smoke waste is discharged into the atmosphere through a chimney to a height specified by environmental standards.
Air Preparation Unit
Prepares (dries and filters) and supplies air to the oxidation column and to the actuators of the pneumatic system. Consists of a dryer with a filtration unit, receivers and a compressor. The equipment is housed in a modular block container.
Intensive Heating Tank
Designed for storing and intensively heating the plasticizer and is used at the compounding stage to achieve the required characteristics of bitumen grades. The tank is a vertical steel process tank equipped with a mixing device, instrumentation and automation equipment, a heating system, thermal insulation and service platforms.
Feed and Recirculation Unit
Is a modular block container inside which pumping equipment, shut-off and control valves and control and measuring devices are located, necessary for controlling the technological process of feeding liquid components.
Additives Feed Unit
The additives feed unit consists of 3 double-walled polypropylene tanks with a capacity of 15 m3 each.
The tanks are located in separate frame blocks. On top of the tanks there is special fittings with chemically resistant electric drives. Additives are fed by a pumping station for pumping chemicals (located in the feed and recirculation unit).
Quality Control Unit
It is designed for continuous quality control of the bitumen obtained. It consists of a pumping station, an air cooling unit and a viscometer.
From the control points (after the heat exchanger or after the tubular reactor), the product is collected by a pump and sent to the air cooling unit; after reaching the design temperature, the viscosity of the product is measured and it is returned back to the recirculation circuit of the oxidation column.
Black Diesel Fuel Storage Unit
The separator condensate (black diesel fuel) is discharged from the separators into a special horizontal tank and can be used as a component of boiler fuel or disposed of. Pumping equipment and shut-off valves are provided. The equipment is housed in a modular block container.
Central Power Supply Unit
The unit is a block container in which the cabinets of the central controller of the control system and the input-distribution device of the power supply system are located.
Control Room
The control room is an insulated room with glazing, providing an overview of the units of the plant. The operator’s post with a touch panel for controlling the oxidation process is located in the control room.