Method for preparing low-carbon olefin hydrocarbon with oxocompound
A technology for low-carbon olefins and oxides, which is used in the production of hydrocarbons from oxygen-containing organic compounds, chemical instruments and methods, and ethylene production, can solve problems such as hazards and product separation difficulties, achieve good technical results, and improve stripping efficiency. Effect
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Embodiment 1
[0019] 200,000 tons / year of methanol to produce low-carbon olefins figure 1 The anti-regeneration system for the continuous regeneration of the catalyst shown and figure 2 The stripping section of the degasser is shown. Reactor diameter 3100mm, 0.06MPaG, reaction temperature 450°C, space velocity 1.0 hour -1 , the line velocity of the lower stripping section is 0.08 m / s, and the line velocity of the upper stripping section is 0.25 m / s. SAPO-34 molecular sieve catalyst is used. The reaction raw material is pure methanol. The concentration of impurities at the reactor outlet is shown in Table 1.
Embodiment 2
[0021] 300,000 tons / year of methanol production of low-carbon olefins figure 1 The anti-regeneration system for the continuous regeneration of the catalyst shown and figure 2 The stripping section of the degasser is shown. Reactor diameter 3900mm, 0.06MPaG, reaction temperature 450°C, space velocity 5.0 hours -1 , the line velocity of the lower stripping section is 0.12 m / s, and the line velocity of the upper stripping section is 0.3 m / s. SAPO-34 molecular sieve catalyst is used. The reaction raw material is pure methanol. The concentration of impurities at the reactor outlet is shown in Table 1.
Embodiment 3
[0023] 400,000 tons / year of methanol production of low-carbon olefins figure 1 The anti-regeneration system for the continuous regeneration of the catalyst shown and figure 2 The stripping section of the degasser is shown. Reactor diameter 4300mm, 0.06MPaG, reaction temperature 470°C, space velocity 3.0 hours -1 , the line velocity of the lower stripping section is 0.17 m / s, and the line velocity of the upper stripping section is 0.35 m / s. SAPO-34 molecular sieve catalyst is used. The reaction raw material is pure methanol. The concentration of impurities at the reactor outlet is shown in Table 1.
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