Gas Treatment.

Gas Dehydration

Custom designed Gas Dehydration packages are supplied to remove water from gas streams using Tri Ethylene Glycol (TEG). The packages are designed to suite the specific gas conditions and composition, corresponding equipment metallurgy and local environmental requirement.

Download the TEG product brochure.

Fuel Gas Packages

Fuel Gas Packages are custom designed to pre-treat gas suitable for consumption by gas turbines, fuel gas boilers etc. A full process design and or verification is completed to ensure successful operation including sufficient superheating and avoidance of hydrates together with hi performance scrubbing and filtration. CO2 removal can also be incorporated into the design.

Nitrogen Generation Packages

Nitrogen Generation Packages using membrane technology provide a trouble free inexpensive solution to inert gas supply. These simple packages are custom designed to suite specific site requirements. Air compression and or Nitrogen compression can be integrated into the package.

Dowload the Nitrogen Generator brochure.

Gas treatment and membranes

Ever-increasing environmental regulations and demand for natural gas bring membranes to the forefront of the oil and gas industry as a prominent method for natural gas treatment.

For the onshore and offshore removal of CO2, H 2S, and H2O from natural gas, ProSep AP's membrane technology provides the upstream oil & gas industry with an easy-to-install, easy-to-operate, flexible, environmentally friendly, cost-effective solution. Our modular skid-mounted membrane separation units house both Grace cellulose acetate (CA) spiral wound and Medal polyimide (PI) hollow fibre membrane modules.

Applications:

  • Pipeline Sales Gas Conditioning
  • Enhanced Oil Recovery (EOR) Operations
  • Fuel Gas Conditioning (Net BTU Value)
  • De-bottlenecking Amine Plants

Information brochures:

ProScav �� H2S removal

ProScav is a system for injecting and mixing H2S scavenger in the pipeline to remove moderate amounts of H2S from gas or liquids. ProScav utilizes the scavenger chemical more efficiently than conventional injection and mixing methods such as atomizing nozzles, quills and static mixers. This added efficiency allows operators to reduce their scavenger consumption by 30-40% while reducing the operating expenditure related to it (transportation, storage, handling and disposal). In less than a year, a typical ProScav system will show a significant return on investment.

Extremely efficient mixing with a low pressure drop

The key component of ProScav is the C100 Injection Mixer which is designed to achieve efficient mass transfer between an appropriate scavenger chemical and H2S in gases or liquids contaminated with H2S. Its internal geometry provides an extremely efficient mixing with a low pressure drop, typically below 0.3 bar.

Ideal for offshore applications

The H2S scavenging process has been installed in over 30 applications worldwide, mainly for offshore operations. The system's compact size, low-maintenance, robustness and tolerance to flow variations make it ideal for offshore use, where the spent scavenger can be discharged to sea or to disposal wells. Compared to other offshore gas sweetening methods, ProScav is very cost efficient, particularly compared to alternatives like amine plants and solid scavengers.

Benefits:

  • 30-40 % reduced scavenger consumption
  • Cost-efficient compared to other offshore H2S removal processes
  • Reduced chemical transportation, handling and storage costs.
  • Efficient even with high flow variations
  • Compact inline system, easy to install at any pipe angle.

Download the ProScav product brochure.

ProCAP  Compact Amine Plant for selective H2S removal

ProCAP is a novel approach to amine plants that replaces the amine contactor tower with ProPure's highly efficient and compact gas-liquid contactor. This ��one-shot�� compact contactor utilizes the non-proprietary solvent MDEA very efficiently, thus reducing the overall solvent circulation rate. The weight and spaced saved by removing the contacting tower and the lower MDEA circulation rate translate into lower overall plant weight, footprint and heat duty.

ProCAP's selectivity towards H2S is achieved through a short retention time combined with high gas-solvent exposure area throughout the contactor minimizing CO2 co-absorption.
With a single-stage installation, ProCAP typically removes 80-90% of H2S in the gas. The higher the CO2 concentration, the more competitive ProCAP becomes. A multi-stage configuration extends the application range of the process to H2S removal efficiencies close to 99%, while maintaining a comparatively low footprint.

A typical reduction in installed weight of 60% can be gained compared to conventional amine plants. This is mainly achieved by a reduction in amine circulation rate of up to 70%, and the reduction of vessel size.

Applications:

Offshore - The reduced footprint requirement makes ProCAP ideal for new or retrofit offshore installation.

Onshore - Debottlenecking existing amine plants : The ProCAP compact flanged contactor can increase the capacity of existing amine plants. A simple modification can increase the plant's capacity by re-using some of the semi-lean amine available in the process.

Benefits:

  • Reduced chemical circulation rate
  • Reduced chemical-related operating expenditure
  • Lower heat duty
  • Smaller footprint
  • High turndown ratio
  • Lower weight

Download the ProCap product brochure.


ProDry

ProDry replaces contacting towers with an inline injector/mixer. This technology has been widely used for H2S removal from gas using scavengers. ProDry saves footprint, weight and operating expenditures related to chemical consumption, storage and handling.

Building on ProPure's long experience with co-current contacting, a Joint Industry Project (JIP) comprising ConocoPhillips, Chevron, Total and StatoilHydro is addressing the potential of gas dehydration with the ProPure contactor.

The JIP has had encouraging results, verifying:

  • Reduced contactor size and weight at actual process conditions
  • Operational robustness and advantages related to turndown, flooding and foaming
  • Mitigation of CO2 corrosion and H2S scale build-up in downstream contactor vessels

Applications for 1 or 2-stage ProDry

  • Debottlenecking of existing dehydration units (1-stage ProDry)
  • Fuel gas dehydration (1- and 2-stage ProDry)
  • Dehydration for gas reinjection (1-stage ProDry)
  • Long distance transportation with moderate and low dew point reduction ( 1- and 2-stage ProDry)
  • Subsea gas dehydration