A kind of coke oven gas to methanol system

A technology for synthesizing methanol and methanol synthesis, which is applied in the preparation/separation of ammonia, the preparation of hydroxyl compounds, the preparation of organic compounds, etc. It can solve the problems of waste and carbon resource emissions, and achieve improved carbon utilization, reduced emissions, and less investment Effect

Active Publication Date: 2016-04-27
CHINA KINGHO ENERGY GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a system for producing methanol from coke oven gas and a method for utilizing methanol purge gas, so as to solve the problem that carbon resources contained in methanol purge gas are discharged and wasted

Method used

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  • A kind of coke oven gas to methanol system
  • A kind of coke oven gas to methanol system

Examples

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Embodiment

[0044] Send methanol purge gas into figure 1 In the methanol purge gas synthesis unit shown in . The methanol purge gas synthesis tower 7 is a GC-type water-cooled plate synthesis reactor produced by Nanjing Guochang Company, and the catalyst filled in it is the C-307 catalyst of the Nanhua Research Institute. In the second preheater 8, the methanol purge gas enters the tube side, and the product gas from the methanol purge gas synthesis tower enters the shell side. The logistics parameters of each position in the system are shown in Table 1.

[0045] Table 1

[0046]

[0047] It can be seen from Table 1 that by adopting the method of the present invention, the total carbon conversion rate of coke oven gas can be increased from the original 92% to over 98%, achieving the purpose of energy saving and emission reduction. At the same time, the invention provides a methanol purge gas synthesis system that can share the burden of the original coke oven gas methanol system in ...

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PUM

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Abstract

The invention discloses a system for producing methanol by using coke oven gas. The system comprises a methanol synthesis unit and a methanol purge gas utilization unit, wherein the methanol purge gas utilization unit is used for synthesizing methanol by taking methanol purge gas from the methanol synthesis unit as a raw material. The invention also discloses a methanol purge gas utilization method. The traditional simple combustion utilization constraint is broken on the aspect of methanol purge gas utilization, and the methanol purge gas is further deeply synthesized to produce methanol, so that carbon in the methanol purge gas is more sufficiently digested, the extremely low carbon content of tail gas is difficult to reach by a conventional synthesis tower, the utilization ratio of carbon is increased, the discharged greenhouse gas is reduced, and meanwhile, the considerable economic benefit is further brought.

Description

technical field [0001] The invention relates to the field of methanol synthesis, in particular to a system for producing methanol from coke oven gas and a method for utilizing methanol purge gas. Background technique [0002] The main process of methanol production from coke oven gas in the prior art is to convert desulfurized coke oven gas to obtain CO, CO 2 and H 2 It is sent to a methanol synthesis tower and synthesized under the action of a catalyst. After the gas from the synthesis tower is cooled and separated from methanol, most of it is sent to the synthesis tower as recycle gas together with the fresh gas feed of the synthesis tower, and the remaining part of the gas is methanol purge gas. In order to maintain the balance of the system, coke oven gas is produced Methanol enterprises usually discharge the methanol purge gas directly or send it to coal for combustion. [0003] In coke oven gas to methanol enterprises, in order to meet the needs of economic developm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C29/151C07C31/04C01C1/04
CPCC07C29/152C07C31/04
Inventor 郭敬华周晓埜杨子江
Owner CHINA KINGHO ENERGY GRP
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