Continuous process for preparing hydrocarbon products through methanol transformation without standby reactor
A technology for the conversion of hydrocarbon products and methanol, which is applied in the continuous process field, can solve the problems of cumbersome operation of regeneration system control and actuators, increased investment in automatic control parts, and lower reliability of equipment operation, so as to simplify the automatic control part and improve stability performance and reliability, and the effect of reducing equipment investment
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[0022] Example 1 takes the one-step methanol conversion to gasoline process in a fixed bed adiabatic reactor as an example, and uses the process flow shown in the drawings. The number of the first group of reactors 6 and the second group of reactors 7 is two, and each reactor is filled with 100kg of methanol conversion to gasoline catalyst (ZSM-5 molecular sieve catalyst). The reaction pressure was 1.6 MPa, the inlet temperature of each reactor was 320°C, and the outlet temperature was 410°C. The specific implementation steps are as follows.
[0023] 1. Turn on the first set of reactors
[0024] As shown in the process flow chart, when the first set of reactors (6) is started, the reaction material inlet valve (4) and reaction material outlet valve (8) of the first group of reactors (6) are opened, and the reaction material inlet valve of the second group of reactors (7) is closed. (5) The reaction material outlet valve (9), and the valves (11), (12), (13), (14) of the regenerati...
Example Embodiment
[0040] Example 2 takes the conversion of methanol to prepare LPG as an example. The process flow shown in the figure is adopted. The number of the first group of reactors 6 and the second group of reactors 7 is 4, and each reactor is filled with 50kg of ZSM-5 molecular sieve catalyst for conversion of methanol to produce LPG, and the total amount of catalyst is 400kg. The methanol flow rate is 800 kg / h, the system pressure is 1.0 MPa, the inlet temperature of each reactor is 380°C, and the outlet temperature of each reactor is 510°C. Under the condition that reactor 6 and reactor 7 are working at the same time, the mass space velocity of methanol is 2.0h -1 , When one group of catalysts is in the regenerating state, relative to the working catalyst, the methanol mass space velocity is 4.0h -1 . The specific implementation steps are the same as in Example 1.
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