CN103508853A - Dimethyl ether production device - Google Patents
Dimethyl ether production device Download PDFInfo
- Publication number
- CN103508853A CN103508853A CN201310099943.XA CN201310099943A CN103508853A CN 103508853 A CN103508853 A CN 103508853A CN 201310099943 A CN201310099943 A CN 201310099943A CN 103508853 A CN103508853 A CN 103508853A
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- CN
- China
- Prior art keywords
- unit
- raw material
- dehydration
- production equipment
- dimethyl ether
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/09—Preparation of ethers by dehydration of compounds containing hydroxy groups
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The invention discloses a dimethyl ether production device, relating to the technical field of chemical industry. The dimethyl ether production device comprises a raw material feed unit, a methanol dehydration reactor, a catalyst feed unit and an alkali addition unit, wherein the raw material feed unit, catalyst feed unit and alkali addition unit are respectively connected with the methanol dehydration reactor; and an alkali raw material is filled in the alkali addition unit and used for carrying out neutralization reaction with organic acid in the methanol dehydration reactor. The dimethyl ether production device can inhibit wax from formation, and reduce the work for cleaning the wax accumulated in the production equipment and pipeline, thereby enhancing the production efficiency.
Description
Technical field
The present invention relates to chemical technology field, relate in particular to a kind of dme production equipment.
Background technology
Due to the continuous enhancing of the growing and environmental consciousness of energy demand, dme is as clean fuel, and it is efficient, energy-saving and environmental protection combustion technology is subject to people's attention day by day.Dme is a kind of colourless, gas with slight ether fragrance, has the characteristics such as inertia, non-corrosiveness, easily compression, condensation, gasification.Dme is being widely used aspect vehicle fuel and domestic fuel, is also a kind of potential novel industrial fuel with widespread use simultaneously.
Dme can produce wax after entering dimethyl ether reactor to carry out dehydration reaction, As time goes on decline with temperature, slowly hardening of the wax generating is accumulated in dme production unit and pipeline, final disabling facility and pipeline, bring tremendous influence to manufacturing process.The long-pending wax of tradition blocks after production system, can only to being blocked in ducted wax, dredge by shutting down, and not only chokepoint is difficult to determine, and has had a strong impact on production efficiency.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is how to solve in dme production process e-quipment and pipe to have wax and accumulate, and needs the often problem of dredging.
(2) technical scheme
The invention provides a kind of described production equipment, comprise: raw material supplying unit, Dehydration of methanol device, catalyzer feed unit He Jiajian unit, described raw material supplying unit, described catalyzer feed unit and described Jia Jian unit are connected with described Dehydration of methanol device respectively, described Jia Jian is equipped with bases raw material in unit, for the organic acid with described Dehydration of methanol device, carries out neutralization reaction.
Wherein, the alkaloids in described Jia Jian unit is sodium hydroxide.
Wherein, described production equipment also comprises: catalyst recovery unit, described catalyst recovery unit is connected with described Dehydration of methanol device.。
(3) beneficial effect
Dme production equipment in the present invention can suppress wax and form, and reduces the cleaning work to the wax accumulating in production unit and pipeline, has improved production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of dme production equipment in the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Washing unit as described in Figure 1 comprises: Dehydration of methanol device 1 ,Jia Jian unit 2, raw material supplying unit 3, catalyzer feed unit 4, methyl alcohol vaporizing interchanger 5 and catalyst recovery unit 6.Jia Jian unit 2, raw material supplying unit 3, catalyzer feed unit 4, methyl alcohol vaporizing interchanger 5 and catalyst recovery unit 6 are connected with Dehydration of methanol device 1 respectively.Raw material supplying unit 3 is to the methyl alcohol of supplying raw materials in Dehydration of methanol device 1, catalyzer feed unit 4 provides high dehydrated catalysts in Dehydration of methanol device 1, Jia Jian unit 2 provides sodium hydroxide in Dehydration of methanol device 1, methyl alcohol vaporizing interchanger 5 carries out preheating for the methyl alcohol to after dehydration, and catalyst recovery unit 6 reclaims reacted catalyzer.
The principle of work of this production unit is: methyl alcohol, under catalyst action, dehydration reaction occurs, and contained impurity in Dehydration of methanol device 1, as dehydration reaction also occurs for Ester and higher fatty acid simultaneously, generates wax.By the sodium hydroxide adding in Jia Jian unit 2, carry out neutralization reaction with the organic acid in thick methyl alcohol, can promote the ester class saponification reaction in thick methyl alcohol, suppress wax and form, thereby reach, prevent that the e-quipment and pipe that long-pending wax causes from blocking, and improves the object of dme production efficiency.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (3)
1. a dme production equipment, it is characterized in that, described production equipment comprises: raw material supplying unit, Dehydration of methanol device, catalyzer feed unit He Jiajian unit, described raw material supplying unit, described catalyzer feed unit and described Jia Jian unit are connected with described Dehydration of methanol device respectively, described Jia Jian is equipped with bases raw material in unit, for the organic acid with described Dehydration of methanol device, carries out neutralization reaction.
2. production equipment as claimed in claim 1, is characterized in that, the alkaloids in described Jia Jian unit is sodium hydroxide.
3. production equipment as claimed in claim 1, is characterized in that, described production equipment also comprises: catalyst recovery unit, described catalyst recovery unit is connected with described Dehydration of methanol device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099943.XA CN103508853A (en) | 2013-03-26 | 2013-03-26 | Dimethyl ether production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310099943.XA CN103508853A (en) | 2013-03-26 | 2013-03-26 | Dimethyl ether production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103508853A true CN103508853A (en) | 2014-01-15 |
Family
ID=49892341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310099943.XA Pending CN103508853A (en) | 2013-03-26 | 2013-03-26 | Dimethyl ether production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103508853A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058534A (en) * | 2006-04-18 | 2007-10-24 | 杭州林达化工技术工程有限公司 | Device and method for preparing dimethyl ether from methanol |
| WO2009117851A1 (en) * | 2008-03-26 | 2009-10-01 | 中国石油化工股份有限公司 | A process for producing dimethyl ether from methanol |
-
2013
- 2013-03-26 CN CN201310099943.XA patent/CN103508853A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058534A (en) * | 2006-04-18 | 2007-10-24 | 杭州林达化工技术工程有限公司 | Device and method for preparing dimethyl ether from methanol |
| WO2009117851A1 (en) * | 2008-03-26 | 2009-10-01 | 中国石油化工股份有限公司 | A process for producing dimethyl ether from methanol |
Non-Patent Citations (1)
| Title |
|---|
| 李鹏: ""二甲醚生产中产生蜡的原因及废水处理"", 《河南化工》, vol. 26, no. 7, 31 December 2009 (2009-12-31), pages 44 - 46 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140115 |