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System for producing methanol by using coke oven gas

A technology for the production of methanol and coke oven gas, which is applied in the preparation/separation of ammonia, the preparation of hydroxyl compounds, and the preparation of organic compounds. small effect

Active Publication Date: 2014-08-13
CHINA KINGHO ENERGY GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • System for producing methanol by using coke oven gas
  • System for producing methanol by using coke oven gas

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Experimental program
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Embodiment

[0044] Purge methanol into figure 1 Methanol purge gas synthesis unit shown in. The methanol purge gas synthesis tower 7 selects a GC type water-cooled plate synthesis reactor produced by Nanjing Guochang Company, and the filling catalyst is a C-307 type catalyst of Nanhua Research Institute. In the second preheater 8, the methanol purge gas inlet pipe 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 92% to more than 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 to methanol system in the normal production of coke oven g...

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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 methanol production system from coke oven gas and a utilization method of methanol purge gas. Background technique [0002] The main process of producing methanol from coke oven gas in the prior art is to transform the desulfurized coke oven gas to obtain CO and CO 2 And H 2 It is sent to the methanol synthesis tower and synthesized under the action of a catalyst. After the gas from the synthesis tower is cooled to separate methanol, most of it is sent to the synthesis tower as circulating gas and the fresh gas feed of the synthesis tower. The remaining part of the gas is methanol purge gas. In order to maintain the system balance, the coke oven gas is produced Methanol companies usually emit methanol directly from the gas system or send it to coal for combustion. [0003] In coke oven gas to methanol enterprises, in order to meet the needs of economic development, it is required to...

Claims

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Application Information

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