Method for increase production of propylene by hydrocarbon conversion of byproducts of methanol-to-propylene technology
A technology for methanol to propylene and by-product hydrocarbons, applied in ethylene production, hydrocarbon cracking to hydrocarbons, and hydrocarbons from oxygen-containing organic compounds, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] The ratio of raw material methanol and water is 1:1, and the mass space velocity is 1h -1 , the reaction temperature is 470°C, the reaction pressure is 0.1MPa, the raw material is only exposed to a layer of industrial MTP catalyst for reaction, the product is collected and analyzed, and the composition distribution of the product is shown in Table 1.
[0026] Table 1 The amount composition of MTP product distribution material
[0027] C1，％
Embodiment 2
[0029] The ratio of raw material methanol and water is 1:1, and the mass space velocity is 1h -1 , the reaction temperature of the two catalyst beds is 470°C, and the reaction pressure is 0.1MPa. The raw materials are continuously contacted with one layer of industrial MTP catalyst and different two-layer catalysts for reaction. The products are collected and analyzed. The composition and distribution of the products are shown in Table 2. Experiments No. 1-3 used different two-layer catalysts, in which the SiO of molecular sieves is in brackets 2 / Al 2 o 3 , compared with [Example 1], the content of propylene and ethylene in the product increased by about 9%, C 4 and C 4 + The hydrocarbon content is reduced. Among them, the use of HM and MCM-41 has achieved good results. The two-layer catalyst used in the No. 4 experiment is a composite molecular sieve, and the weight ratio of MCM-41 and HZSM-5 is 5:1, which has similar effects.
[0030] The effect of table 2 raw materi...
Embodiment 3
[0033] The ratio of raw material methanol and water is 1:1, and the mass space velocity is 1h -1 , the reaction temperature of the two catalyst beds is 470°C, and the reaction pressure is 0.1MPa. The raw materials are continuously contacted with a layer of industrial MTP catalyst and a transition metal-modified molecular sieve two-layer catalyst. The products are collected and analyzed. The composition and distribution of the products are shown in Table 3. . Compared with [Example 1], the content of propylene and ethylene in the product increases, and C 4 and C 4 + The hydrocarbon content is reduced.
[0034] Table 3 Effect of transition metal modified molecular sieve two-layer catalyst
[0035]
[0036]
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More