BORSIG Membrane Technology GmbH
Our membrane technology
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Emission Control

Volatile Organic Compounds (VOC), defined as a large family of hydrocarbons with high volatility, occur naturally and are produced in many industrial processes. In the oil and gas industry as well as in the chemical and petrochemical industries, a wide range of industrial applications that use VOC causes substantial emissions mainly due to evaporation, displacement and purge procedures.

Toxic and carcinogenic emissions from volatile organic compounds (VOC) pose a significant risk to health. They are also known to cause ozone gas which leads to summer smog and contributes to global warming. Suitable measures need to be taken to protect people and the environment by minimising these emissions.

The use, storage and distribution of solvents and petroleum products have been identified as the most significant sources for VOC emissions. Displacement and evaporation affect the release of organic vapours, which in most cases are mixed with air or other permanent gases. Typical products are solvents, all types of gasoline, additives, diesel, jet fuel, alcohols, bio fuels and crude oil.

International regulations and emission laws have been implemented to drastically minimise VOC emissions by reducing VOC consumption with the installation of emission control systems. At the same time industrial operators are also focusing on this aspect as part of an ecological reorientation of their production philosophy.

The installation of emission control systems very often has economic benefits such as the recovery of VOC vapours for reuse. The value of the recovered product and other associated effects increase the profitability and return on investment (ROI). One example is the tax rebate granted in some countries when the vapours of previously taxed products are recovered and returned to the distribution chain.
BORSIG Membrane Technology GmbH offers emission control solutions with maximum recovery rates of up to 99.9% and thereby enables compliance with all customary emission standards worldwide whilst also fulfilling the highest quality, safety and reliability demands.

Vapour Recovery Unit (BTX)
Vapour Recovery Unit (BTX)

Vapour Recovery Unit

The BORSIG Vapour Recovery Unit (VRU) combines absorption/condensation and membrane separation. The unit comprises a liquid ring compressor, scrubber column, membrane stage and vacuum pump. 

Aromatic Recovery Unit

Aromatics (benzene, toluene, xylene etc.) are petrochemical products with the highest emission control priority. Emissions from aromatic products have been identified as carcinogenic and consequently many countries have introduced particularly strict emission limits.

Carbon Retrofit Unit

The BORSIG Carbon Retrofit Unit mainly consists of the membrane unit, a vacuum pump and an optional blower installed upstream from the existing active carbon unit.A substantial mass flow of hydrocarbons bypasses the adsorber vessels and directly enters the existing absorption system (scrubber).

Marine Vapour Recovery Unit

Next to the vapour recovery unit itself, the application of marine vapour recovery typically requires long piping installations and built-in safety devices e.g. dock safety units. Very often the VRU is a minor part of the investment. The MVRU is able to handle single or parallel loading from one or various sea-going vessels.

Dock Safety Unit

Marine loading installation and marine vapour recovery concepts in particularly require the comprehensive installation of hardware such as loading arms, vapour piping, VRU and additional safety devices. The safety of this application must be safely implemented from the dock to the VRU. Over-filling, over/under pressure protection and fire and explosion protection must be considered.

Vent Recovery System

BORSIG Membrane Technology GmbH has developed an innovative, enhanced add-on system which increases the vapour return ratio from the car nozzle to the storage tank for more efficient vapour collection.The BORSIG Vent Recovery System (VRS) consists of a small membrane module and a vacuum pump.

Terminals and Refineries

  • BORSIG Vapour Recovery Unit
  • BORSIG Aromatic Recovery Unit
  • BORSIG Carbon Retrofit Unit

Marine Loading

  • BORSIG Marine Vapour Recovery Unit
  • BORSIG Dock Safety Unit

Car Filling Stations

  • BORSIG Vent Recovery System


BORSIG Membrane Technology GmbH

Membrane processes are standard processes used either as a substitution or in combination with other process steps in many areas of the chemical, petrochemical, oil and gas industries. BORSIG Membrane Technology GmbH offers modern, intelligent solutions for new and existing processes. Taking the highest safety and quality standards into consideration, our membranes, membrane modules and membrane systems ensure operational safety, maximum efficiency and optimum cost effectiveness.

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