Fluid Catalytic Cracking For Refractory Material
Catalytic cracking is an important secondary processing method for heavy oil lightening and is the core equipment of each refinery. Because it belongs to high temperature and high pressure devices, the internal parts are many and the shape is complex, and there is a high-speed flushing of the fluidized catalyst. Therefore, it is necessary to use an amorphous refractory material as a heat-insulating and wear-resistant lining in the metal wall.
For each part of the device, the appropriate lining application is as follows:
The lining structure of the pipeline of the following equipment should be a single layer insulation and wear-resistant lining without tortoise shell:
First regenerator
Second regenerator
Charred tank, degassing tank
External heat extractor
Three-stage cyclone separator
The lining structure of the following equipment is preferably made of double-layer insulation and wear-resistant lining of tortoise shell net, or single-layer insulation and wear-resistant lining without tortoise shell net:
Reaction (sedimentation)
Flue (divided into oil and gas pipelines and flue gas pipelines)
Oil and gas pipelines should be made of tortoise shell double-layer insulation and wear-resistant lining
The flue gas pipeline adopts a single layer of heat-insulating wear-resistant lining or a tortoise
shell with double-layer insulation and wear-resistant lining.
The lining structure of the following two accessories shall be a single layer of high wear-resistant lining of the tortoise shell net;
Hot wall cyclone separator
Hot wall dilute tube
Hot wall material legs
Double acting slide valve
Cold wall cyclone separator
The lining structure of the following high-speed scouring parts should adopt a single layer high wear-resistant lining without tortoise shell net;
Air distribution tube or distribution plate
Smoke plate pressure reducer
The lining structure of the following high-speed scouring parts should be double-layered with high wear-resistant tortoise shell net;
Riser reactor
Lift tube Y-shaped part
Inclined tube
The selection of a suitable lining structure and excellent lining material is a double insurance for the anti-corrosion insulation project of the catalytic cracking unit:
For the refinery catalytic cracking equipment cyclone separator, double acting slide valve, riser, dilute phase tube, material leg and other parts of the wear and tear are more serious, we recommend the use of high-strength wear-resistant ramming material (refractory plastic)
We offer a range of wear-resistant ramming materials for the double-layered wear-resistant layer of the refinery catalytic cracking unit; we can provide more than ten kinds of products for the insulation layer. By optimizing the aggregate grading, the ultra-fine powder technology is used to make the lining more compact and wear-resistant.
A range of insulation and wear resistant materials are available for single layer linings in catalytic cracking units. The series of single-layer lining materials can achieve self-reaction, self-sintering and self-expansion after fine finishing, and can be directly used after molding baking, saving a lot of energy. The unique formula makes the light, high temperature, heat insulation, wear resistance and low iron properties all together.
