Installations

High performance trays

The high-capacity tray is a new type of multi-downcomer tray developed for large column diameter and high liquid loading cases. The tray is based on high performance tray and combines features of multi-pass tray flow. With optimized new downcomer design, it provides higher mass-transfer efficiency and larger liquid capacity in rectification and absorption process. Compared to traditional 4-pass tray, it can increase capacity by at least 25% with comparable tray efficiency

● Improved multi-downcomer tray based on multi-pass tray flow characteristics for reference

● With lateral or longitudinal downcomers, liquid on the tray will form radicalised flow or parallel flow which avoid stagnant pool and increase flow path length

● Parallel liquid flow with same path lengths maintains the same vapor to liquid ratio

● Higher mass transfer efficiency by overcoming the liquid maldistribution that

occurs on a traditional multi-downcomer tray.

● Weir liquid loading can be decreased compared to that of 4-pass and 6-pass trays. This scenario increases tray capacity, especially in high liquid loading.

● Adapts to rectification and absorption process with high mass-transfer efficiency requirement and large liquid capacity cases

Main Features Application Fields

Valve with top canopies - Atmospheris and vacuum units of petroleum
Directional valves - FCCU
Bubble promotor - Light hydrocarbon seperation
Non-revolving valve - Hydrogenation
Improved tray deck connection - Coking
- Reform and aromatics complex
- Methanol plant
- Acetic acid

- Polysilicon

Advantages over Conventional trays

Higher capacity by 40% or more
Efficiency increase by 10-20%
Lower pressure drop by more than 10%
Greater flexibility by 30-50%
Minimum modification in reconstruction
Easy to install

TRAY SERIES

Valve tray
Floating round valve with top canopies to fine dispersion
Anti-spin to avoid valve legs abrasion
High performance in efficiency and capacity
Wide operation flexibility
R Valve tray
Floating rectangular valve with canopies to fine dispersion
F tray
More efficiency and higher flexibility than conventional trays
Adapt to fouling and coking system

Conventional trays

Conventional standard trays

Standard valve trays
Bubble Cap tray
Sieve Tray
Dual Flow tray
Other trays

Conventional Standard Valve

Tray available in light and heavy standard valve

Valve trays are essentially flat perforated trays with movable or fixed.

valve units. Floating valves are disk-shaped devices which contain legs.

formed out of the valve disk. Fixed valves are units with integral legs.

formed out of the tray deck.

Bubble Cap Tray

Standard round cap: 80/100/150.

Rectangular cap.

Bubble cap trays consist of a flat perforated deck in which the holes.

are enclosed with vapor chimney risers and caps in the form of inverted.

cups mounted on top of the risers. This gives the bubble cap tray.

advantages to operate at extremely low liquid and vapor rates.

Sieve Tray

Sieve trays are flat perforated plates in which vapor is forced through.

the holes into the cross-flowing liquid. This vapor flow prevents liquid.

weeping from leaking through the holes.

Dual-flow Tray

Dual-flow tray is a type of sieve tray that does not feature.

downcomers such that the entire active area of the tray is perforated with.

holes. The size of these holes can range from 10 to 25mm in diameter.

Other Trays

Shower deck tray, disc & donut tray, sump tray, baffle tray, cartridge tray (for small diameter flanged columns), etc.

Others as per client request

Trays can come in carbon steel, stainless steel, alloy 600, titanium, Monel, Hastelloy, zzirconium or other materials as per client request.

Collector trays

Liquid Collector tray/chimney tray

Trough Liquid Collector
Chimney Tray Liquid Collector with Rectangular Riser
Chimney Tray Liquid Collector with Rectangular Riser and Main Trough
Chevron liquid collector
Chevron liquid collector with annular trough
Chevron liquid collector with centre trough

The chimney tray or collector tray as is designed to collect liquid for one of two reasons: 1. to draw-off a product or pumparound stream 2. combine it with a liquid feed to the column before introducing the mixture to a liquid distributor above a packed tower.

Trough Liquid Collector Liquid trough collector is resistant to heat expansion and cooling contraction. It also reduces the need for on-site welding. It can be used for total or partial draw-off and/or to feed a liquid distributor below.

Chimney Tray Liquid Collector with Rectangular Riser Capped rectangular gas risers are used for gas distribution and liquid collection. Liquid is drawn out from a side sump

Chimney Tray Liquid Collector with Rectangular Riser and Main Trough Capped rectangular gas risers are used for gas distribution and liquid collection, liquid is drawn out from a central trough.

CHEVRON LIQUID COLLECTOR

Chevron liquid collector with Annular Trough Liquid is collected through inclined plates and flows into the annular channel, reducing pressure drop and the need for on-site welding. It can be used for total or partial liquid draw-off and/or to feed a liquid distributor below from a ring channel welded to the column wall.

Chevron Liquid Collector with Centre Trough The Liquid is collected through inclined plates and flows into the centre trough. reducing pressure drop and the need for on-site welding. Liquid total or partial draw-off and/or feed a liquid distributor below from a central trough welded to the column wall.