Continuous process for preparing hydrocarbon products through methanol transformation without standby reactor

The invention discloses a continuous process for preparing hydrocarbon products through methanol transformation without standby reactor. Two groups of reactors are arranged; the first group reactor works first, when a catalyst in the first group of reactor reaches metaphase of lifetime one way, the second group of reactor is started, so that the two groups of reactors are in the simultaneous working state and respectively bear 50 percent of reaction load; when the catalyst in the first group of reactor reaches last phase of the lifetime one way, a catalyst in the second group of reactor is positioned in the metaphase of lifetime one way, and at the moment, the total 100 percent of reaction load is transferred to the second group of reactor and the catalyst in the first group of reactor is regenerated; after the catalyst in the first group of reactor is regenerated, the first group of reactor works, and the two groups of reactors respectively bear 50 percent of reaction load; when the catalyst in the second group of reactor reaches the last phase of the lifetime one way, the catalyst in the first group of reactor is positioned in the metaphase of the lifetime one way, and at the moment, the total 100 percent of reaction load is transferred to the first group of reactor and the catalyst in the second group of reactor is regenerated; the process is repeated so as to realize reaction process continuity under the condition of no standby reactor. The continuous process has the advantages of not needing arranging the standby reactor, simplifying process flow, reducing equipment investment and improving system operation stability and reliability.