Device and process for preparing gasoline using synthesis gas by two-step method
A technology for synthesis gas and gasoline, which is applied in the preparation of hydroxyl compounds, the preparation of organic compounds, and the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of affecting the quality of gasoline, increasing production costs, and complex processes, so as to improve quality and reduce production costs. , The effect of simplifying the process
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Embodiment 1
[0034] Embodiment 1: the device that synthetic gas two-step method prepares gasoline
[0035] combined with figure 1 A kind of synthesis gas two-step process preparation gasoline device among the present invention is described,
[0036]The device includes an integrated reactor 2. The upper part of the integrated reactor 2 is connected to the preheater 1. The top of the reactor 2 is provided with a synthesis gas inlet 11. The main body of the reactor 2 is a fixed bed, including an upper catalyst bed 3 and a lower catalyst bed. Bed 4; the upper catalyst bed 3 is located at the top of the reactor 2, the left side of the reactor 2 is provided with a first cooling gas inlet 12, the end of the first cooling gas inlet 12 is provided with a first cooling gas distributor 13, the first Below the cooling gas inlet 12, there is a syngas-to-methanol catalyst, below the upper catalyst bed 3 is a first catalyst tray 15, and on the outside of the upper catalyst bed 3, a first heating furnac...
Embodiment 2
[0043] Embodiment 2: the technique that synthesis gas two-step method prepares gasoline
[0044] Specifically include the following steps:
[0045] Step (1) Syngas is produced by coal gasification, H 2 The / CO volume ratio is 2, pressurized to 3 MPa, and enters the upper catalyst bed of the fixed-bed reactor from the upper inlet after being preheated by the preheater.
[0046] Step (2) Syngas to methanol catalyst is C302 catalyst developed by Southwest Chemical Design Institute. The conditions for methanol synthesis are: reaction inlet temperature 230°C, outlet temperature 260°C, reaction pressure 3.0 MPa, gas space velocity 6000 mL·g -1 h -1 (with H 2 and CO in mind).
[0047] The mixed gas after the reaction in step (3) enters the lower catalyst bed (methanol to gasoline), and the catalyst used in the reaction is a zirconium-containing ZSM-5 molecular sieve catalyst with a silicon-aluminum ratio of 75 to 90 produced by the Shanxi Coal Chemical Industry Institute of the C...
Embodiment 3
[0054] Embodiment 3: the technique for preparing gasoline by syngas two-step method
[0055] Specifically include the following steps:
[0056] Step (1) Syngas is mainly produced by coal gasification or natural gas cracking, H 2 The / CO volume ratio is 3, pressurized to 3 MPa, and enters the upper catalyst bed of the fixed-bed reactor from the upper inlet after being preheated by the preheater.
[0057] Step (2) Syngas to methanol catalyst is C302 catalyst developed by Southwest Chemical Design Institute. The conditions for methanol synthesis are: reaction inlet temperature 240°C, outlet temperature 260°C, reaction pressure 3 MPa, gas space velocity 7000 mL·g -1 h -1 (with H 2 and CO in mind).
[0058] The mixed gas after the reaction in step (3) enters the lower catalyst bed (methanol to gasoline), and the catalyst used in the reaction is a zirconium-containing ZSM-5 molecular sieve catalyst with a silicon-aluminum ratio of 75 to 90 produced by the Shanxi Coal Chemical In...
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