Support bed topping and grading materials are usually physically functional. And they are mainly applied in the industry of oil refining. Normally in a catalyst reactor unit, reaction materials will flow from top to down. In this process, we will need inert topping media placed on top providing pressure to get the materials fully dispersed, meanwhile active bed grading inside to cut the materials from large to small particles leaving them uniformly distributed and completely contacted. Therefore, with their assistance, the catalysts and adsorbents can get thorough reaction effectively.
The problems are in the refinery industry, they are facing severe challenges upon an extended range of poisons occurred in the hydro-processing unit because of the great varieties of the feed sources. Many detected contaminants are proved to cause the catalyst bed poisoning even at very low concentrations. Such cases are leading to a large number of operation problems and more costs taken in the plants, and eventually a poor return on investment.
Consequently, Chempack together with some local refinery and petrochemical research institutes have developed suitable and cost-effective bed support media solutions to safely guard the main catalysts from poisoning. At Chempack, we supply a wide array of high-performance yet lower-cost catalyst support and grading materials with both standard specifications and advanced materials/shapes tailored to your requirements. In our in-house factory, we are manufacturing shaped ceramic rings, honeycomb discs, metal impregnated hollow rings, cylindrical extrudate, trilobe extrudate, quadralobe extrudate, inert balls, and more to meet your diversified project needs.
In order to improve and deal with the refinery problems of poor crude oil conditions and more heavy crude in a targeted manner, we have utilized our advanced material technologies in the hydro-processing unit to prevent catalyst poisoning or mitigating and remove the impurities.
The active bed grading media and topping materials we provide can find their path to maximize the overall catalyst bed lifespan and minimize the challenging pressure drop. And with us, you can find various active grading catalysts from hollow rings, trilobe, to quadralobe-shaped products with Ni, Mo, NiMo, and CoMo impregnated.
The porosity or void fraction, the void space accessible from the surface of our bed topping and grading media is high from 60% to 70%, providing an efficient capture of particulates and other contaminants in the feed. Along with the customizable physical sizes from Ф11mm to Ф76mm and more, the reaction materials of catalysts and adsorbents can get more exhaustively mixed, contacted, distributed, and reacted for the best production results.
As the new generation products of the bed protection filter disk grading technology in the active filtration system, our bed topping media is with the reasonably designed mechanism to lower the pressure drop, so as to increase the service life of the materials. Besides, they can protect your catalytic unit and catalyst investment, and significantly reduce the catalyst deactivation rate in the reactor with the advanced bed design technology.
With the mild activity designed structure and different shapes (cylindrical / trilobe / quadralobe / inert balls), the top bed grading media of ours has the stable and outstanding physical power to allow for a strong, even, and smooth fluid flow in a great variety of hydroprocessing units, hydrotreating units, sulfur guard beds, and chloride guard beds applications.
Used in hydrotreating units, sulfur guard beds, and chloride guard beds.
