What is the service life of MTO-100 catalyst?

There is no fixed standard for this, and it is related to working conditions, processing capacity, ingredients, etc. It should generally be at least one and a half years.

It is also related to the management level of the enterprise. If it is used well and the process is well controlled, the time will be longer.

It is best for the owner to clearly state whether it is a single-pass life or a total cycle regeneration life, and the catalyst usage conditions should also be clearly stated, otherwise there is no point in answering such questions!

MTO-100 is a combination of SAPO-34 developed by Union Carbide and a series of specially selected adhesive materials. SAPO-34 is the matrix of MTO-100 catalyst. It was developed by Union Carbide Molecular Sieve Department in the 1980s. Its main chemical components include Si, Al, P, O and other elements. It has suitable internal pore structure size and solid acidity strength, which can minimize the oligomerization reaction of olefins generated in the early stage of the reaction to generate macromolecular hydrocarbons, thereby improving the selectivity of the target product - olefins. While AO-34 is an ideal catalytic material, it is not a robust material for fluidized bed operation, and the binder selected increases catalyst strength and wear resistance. Presumably, the binders used in MTO-100 are treated silica and alumina. The pore size of the SAPO-34 molecular sieve catalyst only allows ethylene, propylene and a small amount of C4 to pass through, and will not produce heavy hydrocarbon products. By adjusting M:m=m75-1.5, the yield of ethylene + propylene is relatively stable, and the purity of ethylene and propylene is above 99.6%. The lifespan is at least more than one year, which can directly meet the requirements of polymer-grade propylene and ethylene.

If the concentration of ethylene and propylene coming out of the MTO reactor can directly reach 99.6%, then all cracking furnace ethylene plants around the world will close down! Whether it is UOP's MTO, Lurgi's MTP, or Dalian's DMTO, it is very good if the total concentration of ethylene + propylene in the process gas coming out of the reactor can reach 30%. Among them, the highest concentration must be the water produced by the reaction, which exceeds 50%, as well as some methane, ethane, propane, butane, butene, C5, etc. Such process gas must undergo quenching, purification, multi-stage compression, purification again, and cryogenic separation before polymerization-grade ethylene and propylene can be obtained. There are three paths for cryogenic separation: pre-deethaneization, pre-depropanization and sequential separation. For the MTO process, the best path is to use the front deethanization process. Cryogenic separation must be equipped with propylene compressors and ethylene compressors, and the MTO regenerator must be equipped with main fans. Large-scale MTO devices with more than 600,000 tons must be equipped with multiple steam turbine compressors and main fans. Among them, the propylene refrigeration compressor, centrifugal main fan, and process gas compressor are all large units with a power of 10,000 kW. This post was last edited by 1681818 on 2009-4-6 23:33 ]

The fluidized bed used in MTO. It is difficult to calculate the life of a fluidized bed catalyst because the catalyst must be continuously regenerated and replenished during the production process. Therefore, it is industrially meaningful to calculate the consumption of tons of products. What is this data? No one in the world has announced it, for the simple reason that there is no precedent in this industry.

Producing 1 ton of olefins requires more than 1 kilogram of catalyst, which costs about 330 yuan.

On the eighth floor, is the damage so great?

Is it so scary? Where did you get the data here? hope to explain

MTO-100 is a fluidized bed catalyst. For fluidized bed catalysts, it is necessary to distinguish the difference in single-pass life between it and fixed bed catalysts. Since the fixed-bed catalyst needs to be used as long as possible in one pass after installation to avoid cycle regeneration, the single-pass life of the catalyst is generally required in technology. For fluidized bed catalysts, the catalyst is generally regenerated continuously between the reactor and the regenerator, and its single-pass reaction activity life may be as short as tens of minutes. The main factor that affects the cost of circulating fluidized bed catalyst is its wear coefficient. Since the fluidized bed catalyst flows between the reactor and the catalyst, physical wear and tear that causes the catalyst particles to fail to meet the fluidization conditions is the main reason why it is necessary to replace and add new catalysts. Therefore, for fluidized bed catalysts, the usage of the catalyst is mainly measured by the amount of catalyst consumed per ton of processing capacity (raw material or product).