Equipment

EQUIFLOW

Applications: hydrotreatment processes (Grassroots, revamps)

EquiFlow® is the latest generation of reactor internals for hydrotreatment reactors. Its purpose is to provide excellent flow distribution starting at the inlet of the catalyst bed in order to maximize the efficiency of the catalyst. The implementation of EquiFlow technology maintains a perfect gas/liquid distribution through the catalytic bed to guarantee the performance while also maximizing the cycle duration. The principle is to ensure an optimized mixing of the gas and the liquid phases before entering the catalytic bed ensuring that the entire reactor the catalyst inventory is acting efficiently.

The EquiFlow family is sold under Hy-Up, Hy-Sep, Hy-Mix and Hy-Quench names for light cuts and Distributors and Mixing trays names for heavy cuts for respectively Up-Flow, Downflow Separate phases, Downflow Mixed phases and mixed or liquid Quench configurations depending on the different applications. 

The EquiFlow technology is suitable for implementation in new reactors as well in existing reactors as a replacement of the existing internals.

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if you want to consult the EquiFlow Commercial Bulletin 

 

RISER SEPARATION SYSTEM

Applications: Fluid Catalytic Cracking processes (Grassroots, Revamps)

The Riser Separation System (RSS) has been developed to ensure a near instantaneous separation of the hot effluent from the catalyst at the top of the reactor riser in order to limit over-cracking which causes excessive coking and dry gas make-up.

This system comprises integrated separation and stripping compartments to achieve both rapid and efficient stripping. Catalyst is contained and directed down into the stripper bed to be stripped with steam within large diplegs.

The RSS design is compatible with a retrofit into an existing unit and improves both the separation system to reduce dry gas and the stripping system to reduce delta coke.

CATACOL DOUBLETS

Applications: MTBE, ETBE, TAME processes (Grassroots, Revamps)

The Catacol^TM is a reactive distillation system consisting of a succession of reaction and distillation modules called Doublets integrated into the upper section of the distillation tower of the Etherification processes. This arrangement offers a number of benefits resulting from combining the finishing reaction in the distillation environment. Each module is optimized to achieve the highest efficiency. The reaction module operates in the liquid phase and is filled with conventional sulfonated resin catalyst, the same as in the main reaction section.

RISER INTERNALS

Applications: H-Oil, H-Coal processes

Ebulating bed reactor technologies require a set of internals with special design for introduction and collection of liquid, vapor and solid phases. All types of internals may be designed and supplied by Axens: spargers; distribution plates with gas risers; downcomers; recycle cup with helical risers; supports for different type of probes - level, pressure and temperature measurements.

RADIAL FLOW REACTOR INTERNALS

Applications: Reforming processes (Grassroots, Revamps)

Specific internals for radial flow reactor systems are used for maximizing performance and reliability of our units. These systems increase contact efficiency between the process stream and the catalytic bed. Distribution of gas mixtures occurs radially through perforated plate distributors (scallops or baskets) located along the reactor walls and passed through the catalytic bed to be collected in a centerpipe and conveyed to the next reaction stage.

ADSORBER TRAYS

Applications: Eluxyl, Elupar processes

Specific trays have been developed for application in adsorbent towers for the separation of paraxylene from a C8 aromatics stream using a simulated bed of molecular sieve adsorbent and a desorbent to produce high purity paraxylene.

These trays are used to support molecular sieve-beds, to distribute and to collect the different products.