Mass Transfer Internals


Sepco Process offers a variety of Mass Transfer Internals used in the petrochemical, gas and oil industry.  Our specialized focus is in designing and providing mass transfer tower internals used in Gas Sweetening (amine), Dehydration (Glycol) and Gas Processing/Fractionation/Stabilization applications.

Distillation Trays: Sepco Process offers a variety of designed and replacement trays, including: Sieve, Floating Valve, Fixed Valve and Bubble-Cap Trays.

Sieve Trays: Manufactured on a perforated tray deck with circular holes. These trays are ideal for low liquid to gas ratio applications. Seive trays are also less prone to fowling. 

Fixed Valve Trays: Manufactured with an immobile valve on a tray deck, this design compared to the sieve tray, enhances vapor and liquid contact and also works well in high-probability fouling service.

Floating Valve Trays: Manufactured with a moveable “floating” valve that is attached to the tray deck.  These valves open and close based on the inlet gas flowrates and offer a wide turndown ratio, without losing tray efficiency. 

Bubble Cap Trays: Manufactured with a fixed/removable cap and riser and is attached to the tray deck.  This design forms a seal on the top of the tray deck which works well in services with low liquid rates. Bubble Cap Trays also offers high (10:1) turndown rate capability.

Packed Tower Internals: Sepco Process offers a full line of Random and Structured packing along with related tower internals including: Vapor/Liquid Distributors, Hold-down Supports, Packing Supports, Chimney Trays, and Inlet Devices.

Structured Packing

Structured packing is formed by vertical sheets of corrugated metal with the angle of the corrugations reversed in adjacent sheets to form a very open structure with inclined flow channels. To simplify installation, it is provided in pre-formed segments that are sized to fit through the vessel manway.

Structured packing is installed in layers approximately 8 in to 10 in high with adjacent layers rotated through 90 degrees. Also, a wall wiper band located around the center of each layer provides a seal and directs liquid from the vessel wall and back into the packing.

Our structured packing is used a large variety of applications on the gas, oil, and water treatment services.  This includes TEG Contractor Columns, Amine Columns, and 2 and 3 Phase separators.

Random Packing

Sepco Process offers a wide range of standard to high perfomance random packing including Pall rings, I-rings, and saddle rings. We offer our packing in a wide range of materials also including stainless steel, ceramic, and polypropolene.

All data in this brochure are for general information only and are based on tests carried out under conditions that may not apply to your requirements. No warranties or guarantees are expressed or implied. No information contained in the brochure constitutes an invitation to infringe any patent, whether now issued or hereafter. All descriptions and specifications are subject to change without notice. Copyright Sepco Process, Inc. All Rights Reserved.