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CMTX Technology


Author:admin CreateTime:2015-12-22 Hits:

1. Technology Summarize

The combined production technology of methanol to propylene and butylene (CMTX) is a newly emerged methanol versatile utilization technology which developed under collaborated endeavor between Shanghai Bi Ke Clean Energy Company (Clean Energy Commercialization Company, CECC), Shaanxi Coal and Chemical Industry Group Research Institute, and Shanghai Hoto Engineering Inc. By introducing in CMTX catalyst and loop fluidized bed reactor conversion process, CMTX uses methanol as feeding raw material to produce propylene and mixed aromatics from olefin-rich intermediate products through further separation process.

2. Technology Advantages

CMTX featuring its methanol single pass conversion99.8%, propylene single pass selectivity38%, and butylene single pass selectivity24%.

CMTX technology highlights these technical advantages:

未标题-2.jpg Final products mainly targeting at butylene and propylene of which the mass ratio of i-butylene>40wt.%.

未标题-2.jpg Reaction temperature distributed evenly and reaction heat is easily to remove, products selectivity could maintain quite a stable level.

未标题-2.jpg Catalyst is featuring with strong resistance to carbon laydown and low coking rate (0.06%), coefficient of utilization of methanol is high.

未标题-2.jpg Reactor highlights its high space-velocity, low water to methanol ratio, and smaller size.

未标题-2.jpg Continuous catalyst reactivation under relatively low temperature (360-400), smaller size of regeneration column which leads to higher energy efficiency.

未标题-2.jpg Proprietary olefin separation process featuring higher olefin yield and lower energy consumption.

3. Process Flow

Methanol is injected into fluidized bed reactor after vaporization and heating, where methanol will be converted to high carbon olefin-rich product gas by catalyst. The reaction heat of product gas will be properly recovered while the product gas will be further cooled down in chilling water column and compressed into separation and distillation unit where the final products which consists of propylene, butylene, and mixed aromatics are produced.

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4. Application Prospect

未标题-2.jpg CMTX is not only suitable for constructing medium or large scale installation in coal-methanol rich areas, but also capable of meeting the requirements in offshore areas where imported methanol is used as feedstock for medium or large scale installation.

未标题-2.jpg High carbon olefin becomes gradually in short supply in nowadays under the circumstances that ethylene and propylene is acquired through other technical routes such as propane pyrolysis / propane dehydrogenation. The products of CMTX technology is aiming mainly to high carbon olefin such as butylene and pentene, and it is believed that CMTX technology have extensive prospect of application and may provide useful supplement to the current market.

 

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