Waste methanol purification and reuse system
A waste methanol, imported technology, applied in the field of recycling and reuse of chemical waste liquid, can solve the problems of polluting the environment, increasing production costs, difficulties in raw material procurement, etc., and achieve the effect of reducing production costs and avoiding environmental pollution
Active Publication Date: 2017-04-05
NINGXIA LONGJIANG CHEM ENG TECHCO LTD
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Problems solved by technology
[0002] In the process of using methanol to produce dimethyl ether, there have always been problems of difficult procurement of raw materials and high costs, and waste methanol on the market has always been treated as waste liquid, which not only pollutes the environment, but also increases production costs
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[0019] see Figure 1 to Figure 6 , a system for purification and reuse of waste methanol, comprising a filter unit 10, a heat exchange unit 20, a rectification unit 30, a power unit and a recovery unit;
[0020] The filter unit 10 includes a filter group, a buffer tank 13 and a first feed pump 14, the filter group is a set of two filters connected in series, including a first filter 11 and a second filter 12. The filter group is provided with one group or the same two groups. When the filter group is provided with the same two groups, it includes the first filter group 05 and the second filter group 06, and the two groups are connected in parallel Connected in a way, that is, the inlet of the first filter of the second filter group 06 is connected in parallel with the inlet of the first filter of the first filter group 05, and the outlet of the second filter of the second filter group 06 is connected with the first The outlets of the second filter of filter group 05 are conne...
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The present invention relates to the technical field of chemical industry waste liquid recycling, particularly to a waste methanol purification and recycling system, which comprises a filtration portion, a heat exchange portion, a rectification portion, a power portion and a recovery portion, wherein the outlet of a methanol storage tank is connected with the inlet of the filtration portion, the outlet of the filtration portion is connected with the inlet of the heat exchange portion, the outlet of the heat exchange portion is connected with the inlet of the rectification portion, the outlet of the rectification portion is connected with a refined methanol storage tank or recovery portion, and the power portion is a boiler and supplies heat sources for the heat exchange portion and the rectification portion. With the waste methanol purification and recycling system of the present invention, the waste methanol can be recovered and reused, such that the production cost is reduced, the environmental pollution caused by the direct waste methanol emission is avoided, and the recovered and purified methanol achieves the refined methanol using standard.
Description
technical field [0001] The invention relates to the technical field of recovery and reuse of chemical waste liquid, in particular to a waste methanol purification and reuse system. Background technique [0002] In the process of using methanol to produce dimethyl ether, there have always been problems of difficult procurement of raw materials and high costs, and waste methanol on the market has always been treated as waste liquid, which not only pollutes the environment, but also increases production costs. Contents of the invention [0003] Based on the above deficiencies, the present invention proposes a waste methanol purification and reuse system capable of recycling waste methanol. [0004] A system for purifying and reusing waste methanol, including a filter unit, a heat exchange unit, a rectification unit, a power unit and a recovery unit; [0005] The filter part includes a filter group, a buffer tank and a first feed pump, the filter group is a set of two filters...
Claims
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IPC IPC(8): C07C31/04C07C29/76
Inventor 江清亮郭永刚郭永强张利波
Owner NINGXIA LONGJIANG CHEM ENG TECHCO LTD