Oil and gas refining relies on the effective operation of complex processes and equipment. The function of these can be adversely affected by particulate contamination in the feed streams. Amazon Filters has used its knowledge of the challenges faced in refineries to develop a range of filtration systems designed to help keep the processes functioning at peak performance.

Inlet Gas Separation

Field gas will be processed to remove solid, deformable and liquid contaminants prior to amine sweetening. This typically involves multi-stage separators, coalescers and particulate filters. Amazon Filters has a range of products that are used as a fine filter typically located between the separators and coalescers. For this application we are able to offer a range of cartridges manufactured with either polypropylene or nylon media to provide long operational life and good protection to the coalescer. Products offered include pleated filters such as SupaPleat II, polypropylene depth filters such as SupaSpun II and SupaGard, nylon VisClear depth filters and DuoLine bags. We are able to offer cartridges in the standard 65mm diameter format or as the large diameter high flow Contour or SupaPleat FFC products.

 

Sweetening Process Diagram - WEB

  1. SupaPleat II
  2. SupaGard
  3. VisClear
  4. Contour
  5. SupaSpun II

Amine Sweetening

Effective control of particulates in the amine used to treat sour gas is vital to avoid foaming and fouling within the amine sweetening system. Contamination such as Iron Sulphide particles can result in reboiler tube failure, tray plugging inside the contactor and the regenerator, exchanger failures and frequent pump seal replacements. Ideally the recirculating amine should contain < 1ppm solids and Amazon Filters is able to offer a range of cartridges to help achieve this. These include pleated filters such as SupaPleat II, polypropylene depth filters such as SupaSpun II and SupaGard and nylon VisClear depth filters. We are able to offer cartridges in the standard 65mm diameter format or as the large diameter high flow Contour or SupaPleat FFC products. Filters are available in a range of removal ratings and typically are used prior to the contactor and regeneration system and also downstream of the carbon bed to capture any carbon fines that are shed.

downstreamGlycol Dehydration

Many problems in a glycol dehydration plant such as foaming, reboiler and exchanger fouling, tray plugging and pump failures can be traced to an excessive amount of liquid and solid contaminants present in the process stream. The presence of high levels of particulates can result in reboiler tube failure, tray plugging in the contactor and the regenerator, exchanger failures and frequent pump seal replacements. Recognising that process conditions may vary widely, we supply both nylon and polypropylene media filters to ensure the optimum filter can be chosen. Typical products used are VisClear, SupaGardSupaSpun II and Contour. These are available in a range of removal ratings so the choice of filter can be tailored to the size of contaminating particles.

Catalyst Beds

Catalysts beds are used through out the refining process and can be negatively impacted by particulate contamination in two main ways. Fine particles can plug the flow pathways within the catalyst bed and general particulate contamination can cause deactivation of the catalyst. The use of either polypropylene filters such as SupaPleat II or SupaSpun II or nylon filters such as VisClear rated at 5-10 µm are an effective method to reduce the occurrence of these problems. We also offer SupaMesh sintered metal and woven mesh elements for high temperature and aggressive gas processes. Often these filters are also used downstream of the catalyst bed to retain any catalyst particles that may be shed into the process stream.