Methanol synthesizing device and method of using methanol synthesizing device for synthesizing methanol

Abstract

The invention relates to a methanol synthesizing device and a method of using the methanol synthesizing device for synthesizing methanol. According to the methanol synthesizing device, it is unnecessary to replace original equipment on a large scale, and after pipeline connection is slightly adjusted, the original methanol synthesizing device can be used for production, so that the methanol synthesizing device is popularized among a large number of methanol companies. The method is easy to implement, only electricity consumption of a small synthesis circulating machine and little cooling waterconsumption are improved, and production requirements can be met simply by adopting original public and auxiliary facilities and few additionally arranged pipelines. After the methanol synthesizing device is transformed and put into operation, the overall running efficiency of the methanol synthesizing device is significantly improved; the pressure of a synthesis system is at a low level, not only is power consumption reduced, but also the safety of the device is significantly improved, the total carbon (C) conversion rate is also increased, and energy saving and emission reduction are achieved.

Description

technical field [0001] The invention relates to a methanol synthesis device and a method for synthesizing methanol using the device. Specifically, the invention relates to a methanol synthesis device with a specific multi-tower structure and a method for synthesizing methanol using the device. Background technique [0002] Methanol is a commonly used chemical raw material, which has a wide range of applications in many fields. For example, it can be used as a solvent, antifreeze, fuel or denaturant, and can also be used to produce biodiesel through transesterification, etc. [0003] In the prior art, the conventional preparation method of methanol is, under the action of catalyst, by methanol synthesis gas (the main component is H 2 , CO and CO 2 ) reaction generates methyl alcohol, and its reaction formula is as follows: [0004] CO+2H 2 →CH 3 OH+90.73kJ / mol [0005] CO 2 +3H 2 →CH 3 OH+H 2 O+48.02kJ / mol [0006] For the reaction process, the traditional coke ove...

AI Technical Summary

Problems solved by technology

[0007] This single-tower cycle synthesis system mainly has two disadvantages. One is that the single-tower synthesis catalyst has a small loading capacity, a high space velocity, and a low single-pass conversion rate. Therefore, in order to maintain a high single-pass conversion rate, it is necessary to operate at the upper limit of the operating pressure. , not only increased power consumption, but also a great potential safety hazard; the second is that the effective carbon in the exhaust gas is high, and the average content of CO in the exhaust gas is 3% (v), CO 2 The average content of 4% (v)

Images