Stainless steel sintering filter application maintenance - in the petroleum and petrochemical industry 【 3 m filter.

In the petroleum and petrochemical industry, because the stainless steel sintering filter with high filtration precision, high temperature resistant, corrosion resistance, high mechanical strength and easy processing, long life and many other excellent performance, so more and more to the field of the separation of product and process medium. Such as stainless steel metal powder sintered filter in the process of caprolactam production hydroxylamine catalyst filter in the reaction, and stainless steel multi-layer sintered metal screen filter application in catalytic cracking slurry oil filter has achieved good separation effect. Although stainless steel sintering filter has high mechanical strength and strong corrosion resistance, but in the use process still filter broken happened.

stainless steel sintering filter not only can be used as a basket strainer, mesh filter filtration equipment such as filter medium, and because the stainless steel sintering filter with high filtration precision, high temperature resistant, corrosion resistance, high mechanical strength and easy processing, long life and many other excellent performance, so more and more applied to the petroleum and petrochemical industry in the field of the separation of products and processes in the media. Such as stainless steel metal powder sintered filter in the process of caprolactam production hydroxylamine catalyst filter in the reaction, and stainless steel multi-layer sintered metal screen filter application in catalytic cracking slurry oil filter has achieved good separation effect.

in the petroleum and petrochemical industry while sintered stainless steel filter has high mechanical strength and strong corrosion resistance, but still occurs in the course of application of the filter core damage and fracture. Damage to the filter element, the fracture is mainly due to the filter in the regeneration process, in order to remove lead to filter clogging of catalyst particles or residue on the surface of the filter element, slurry and generally adopt the method of roasting. Local high temperature roasting process inevitably cause filter, and caprolactam hydroxylamine reaction on the catalyst is activated carbon, carbon at high temperatures will penetrate into the stainless steel material, result in carburizing of materials. Stainless steel in the carbon content increased significantly, reduce the mechanical properties and corrosion resistance of stainless steel materials. After carburizing of stainless steel materials in the further alkali treatment on the alkali fragile, result in mechanical strength decreased obviously, filter damage when hit.

given filter the cause of the damage is mainly due to the filter in the process of regeneration of carburizing, carburizing is to occur at high temperature, so the fundamental solution is to avoid filter regeneration process of roasting, can choose or ultrasonic cleaning solution.