CN216499252U - Device for synthesizing chloro-palm oil methyl ester by using palm oil methyl ester - Google Patents
Device for synthesizing chloro-palm oil methyl ester by using palm oil methyl ester Download PDFInfo
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- CN216499252U CN216499252U CN202122917067.XU CN202122917067U CN216499252U CN 216499252 U CN216499252 U CN 216499252U CN 202122917067 U CN202122917067 U CN 202122917067U CN 216499252 U CN216499252 U CN 216499252U
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Abstract
The utility model discloses a device for synthesizing chlorinated palm oil methyl ester by palm oil methyl ester, wherein an outlet at the top of a main chlorination tower is connected with an inlet at the middle lower part of an auxiliary chlorination tower; an outlet at the top of the chlorination auxiliary tower is connected with the middle upper part of the oil-gas separation tower; the falling film absorption tower is provided with two stages, the top outlet of the first stage is connected with the middle part of the second stage, and the falling film absorption tower absorbs the hydrogen chloride tail gas by using high-purity water; the outlet at the top of the oil-gas separation tower is connected with the middle part of the first-stage falling film absorption tower; outlets at the bottom of the two-stage falling film absorption tower are connected with a circulating absorption tank, and outlets of the circulating absorption tank are connected to the top of the first-stage falling film absorption tower and the top of the second-stage falling film absorption tower; the middle upper part of the chlorination main tower is provided with a feed inlet, the middle lower part is connected with a chlorine gas source, a bottom outlet pipeline is divided into two paths, one path is connected with a nitrogen generator set to prepare high-purity nitrogen and provide nitrogen protection for the whole process, and the other path is connected to the top of the deacidification kettle to deacidify the synthesized product and remove hydrogen chloride. The method has the advantages of high utilization rate of chlorine, high purity of byproduct hydrochloric acid and stable product quality.
Description
Technical Field
The utility model relates to the technical field of production devices of bio-ester plasticizers of organic chemical products, in particular to a device for synthesizing chlorinated palm oil methyl ester by using palm oil methyl ester.
Background
With the vigorous development of the biodiesel industry, the development and application of downstream products of biodiesel are gradually rising, and the main direction is to synthesize a bio-ester plasticizer product which is environment-friendly, non-toxic, degradable, high in cost performance and acceptable in the market. The chlorinated palm oil methyl ester serving as one of the bio-ester plasticizer products has the characteristics of good compatibility with PVC, environmental protection, no toxicity, degradability and the like, and is widely applied to the fields of artificial leather, rubber runways and the like. In the device for synthesizing the chlorinated palm oil methyl ester by using the palm oil methyl ester in the prior art, the utilization rate of chlorine is low, the purity of byproduct hydrochloric acid is not high, and the overall economic benefit is not obvious.
Disclosure of Invention
The utility model aims to provide a device for synthesizing chlorinated palm oil methyl ester by using palm oil methyl ester, which has the advantages of high utilization rate of chlorine, high purity of byproduct hydrochloric acid and stable product quality.
In order to realize the purpose, the device for synthesizing the chlorinated palm oil methyl ester by using the palm oil methyl ester comprises a main chlorination tower 1, an auxiliary chlorination tower 2, an oil-gas separation tower 3, a falling film absorption tower 4, a nitrogen making unit 5, a deacidification kettle 6 and a circulating absorption tank 7; an outlet pipeline at the top of the main chlorination tower 1 is connected with an inlet at the middle lower part of the auxiliary chlorination tower 2; the outlet pipeline at the top of the chlorination auxiliary tower 2 is connected with the middle upper part of the oil-gas separation tower 3; the falling film absorption tower 4 is provided with two stages, an outlet pipeline at the top of the first-stage falling film absorption tower is connected with the middle part of the second-stage falling film absorption tower, and the falling film absorption tower 4 absorbs the hydrogen chloride tail gas through high-purity water; the outlet pipeline at the top of the oil-gas separation tower 3 is connected with the middle part of the primary falling film absorption tower; outlets at the bottoms of the first-stage falling film absorption tower and the second-stage falling film absorption tower are connected with a circulating absorption tank 7 through pipelines, and outlets of the circulating absorption tank 7 are connected to the tops of the first-stage falling film absorption tower and the second-stage falling film absorption tower through pipelines; the middle upper part of the chlorination main tower 1 is provided with a feed inlet, the middle lower part is connected with a chlorine gas source, a bottom outlet pipeline is divided into two paths, one path is connected with a nitrogen generator set 5 to prepare high-purity nitrogen and provide nitrogen protection for the whole process, and the other path is connected to the top of a deacidification kettle 6 to deacidify and remove hydrogen chloride from a synthetic product.
Chlorination main tower 1 and chlorination auxiliary tower 2 all are equipped with the observation hole and install the LED lamp to improve the synthetic efficiency.
And a bottom discharge hole pipeline of the oil-gas separation tower 3 is connected with a reflux pump, and the reflux pump is connected to a feed inlet of the auxiliary chlorination tower 2.
And valves are arranged at the inlet and the outlet of the main chlorination tower 1 and the auxiliary chlorination tower 2.
The device for synthesizing the chlorinated palm oil methyl ester by using the palm oil methyl ester has the following technical characteristics and beneficial effects:
1. the utility model adopts the LED lamp for catalysis, improves the synthesis efficiency, greatly improves the use efficiency of the chlorine, does not need additional catalyst, and has safe and reliable operation.
2. The utility model adopts high-purity water to absorb hydrogen chloride gas to prepare high-purity hydrochloric acid, and the product is applied to high-end markets, has high price and obvious economic value.
3. The utility model adopts the nitrogen making unit to prepare high-purity nitrogen, provides nitrogen protection in the whole production process of the product, and ensures the safety of the production process and the stability of the product quality.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for synthesizing chlorinated palm oil methyl ester from palm oil methyl ester according to the present invention.
Reference numerals: a main chlorination tower 1, an auxiliary chlorination tower 2, an oil-gas separation tower 3, a falling film absorption tower 4, a nitrogen making unit 5, a deacidification kettle 6 and a circulating absorption tank 7.
Detailed Description
The apparatus for synthesizing chlorinated palm oil methyl ester from palm oil methyl ester according to the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, the device for synthesizing chlorinated palm oil methyl ester by using palm oil methyl ester comprises a main chlorination tower 1, an auxiliary chlorination tower 2, an oil-gas separation tower 3, a falling film absorption tower 4, a nitrogen making unit 5, a deacidification kettle 6 and a circulating absorption tank 7; the chlorination main tower 1 and the chlorination auxiliary tower 2 are provided with observation holes and are provided with LED lamps for providing photocatalysis for chlorination synthesis reaction; the oil-gas separation tower 3 is used for separating grease mixed in hydrogen chloride gas; the falling film absorption tower 4 is used for absorbing hydrogen chloride gas to prepare high-purity hydrochloric acid; the nitrogen making unit 5 is used for blowing and deacidifying the methyl chloropalmitoi after the production is finished and protecting the products from oxidation; the deacidification kettle 6 is used for deacidifying after the synthesis of the methyl chloropalmitoleate is finished; the chlorination device comprises a chlorination main tower 1, a chlorination auxiliary tower 2 and a chlorination auxiliary tower 2, wherein valves are arranged at feeding and discharging ports of the chlorination main tower 1 and the chlorination auxiliary tower 2, after palm oil methyl ester enters the chlorination main tower 1 and the chlorination auxiliary tower 2, chlorine gas and palm oil methyl ester are subjected to chlorination synthesis reaction under the photocatalysis of LED lamps, hydrogen chloride gas and excessive chlorine gas generated in the chlorination main tower 1 enter the chlorination auxiliary tower 2 through a gas outlet in the top of the chlorination main tower 1 and are subjected to chlorination synthesis reaction with the palm oil methyl ester in the chlorination auxiliary tower 2 under the catalysis of the LED lamps, the chlorination auxiliary tower 2 can further absorb chlorine gas, and the utilization rate of the chlorine gas is improved.
The discharge port of the chlorination main tower 1 is connected with a nitrogen making unit 5, when the chlorination reaction of the chlorination main tower 1 is carried out for a period of time and the specific gravity of the chlorinated palm oil methyl ester in the chlorination main tower 1 is measured to reach 1.02-1.05, the chlorination reaction in the chlorination main tower 1 reaches the end point, at the moment, chlorine is closed, the feed port of the chlorination main tower 1 is closed, the nitrogen unit is opened, nitrogen is blown into the chlorination main tower 1, and most of the chlorine and hydrogen chloride gas are removed.
And a discharge port of the chlorination main tower 1 is connected with a deacidification kettle 6, the chlorinated palm oil methyl ester after nitrogen blowing enters the deacidification kettle 6, a nitrogen unit is opened, and hydrogen chloride in the chlorinated palm oil methyl ester is further removed under the condition of low-vacuum degree nitrogen protection.
An air outlet at the upper end of the auxiliary chlorination tower 2 is connected with an oil-gas separation tower 3 for separating grease contained in hydrogen chloride gas in the synthesis process, a discharge hole at the bottom of the oil-gas separation tower 3 is connected with a reflux pump, and the reflux pump is connected to a feed inlet of the auxiliary chlorination tower 2 and reacts with chlorine again in the auxiliary chlorination tower 2.
The top outlet of the oil-gas separation tower 3 is connected with a falling film absorption tower 4, the falling film absorption tower 4 contains high-purity water, gas discharged from the top outlet of the gas-liquid separation tower 3 is hydrogen chloride gas after the oil-gas separation tower 3 separates oil, and the hydrogen chloride gas is absorbed by the high-purity water after entering the falling film absorption tower 4 to prepare hydrogen chloride solution.
The falling film absorption tower 4 is also connected with a circulating absorption tank 7, and the circulating absorption tank 7 is used for ensuring that high-purity water of the falling film absorption tower 4 is recycled and continuously absorbs hydrogen chloride gas.
The specific operation flow during production is as follows:
inputting palm oil methyl ester into a chlorination main tower 1, starting chlorine, reacting at a certain temperature, finishing the reaction when the specific gravity of the material reaches 1.02-1.05, and closing the chlorine; and blowing nitrogen into the chlorination main tower 1, and after blowing is finished, enabling the chlorinated palm oil methyl ester in the chlorination main tower 1 to enter a deacidification kettle 6, and deacidifying to obtain the chlorinated palm oil methyl ester. Excessive chlorine and hydrogen chloride gas generated by synthesis enter the chlorination auxiliary tower 2 from an air outlet at the top of the chlorination main tower 1, and the chlorine and the palm oil methyl ester are subjected to further chlorination synthesis reaction in the chlorination auxiliary tower 2; the hydrogen chloride gas enters the oil-gas separation tower 3 through a gas outlet at the top of the chlorination auxiliary tower 2 to separate grease, and then enters the falling film absorption tower 4 to be absorbed by high-purity water to prepare high-purity hydrogen chloride solution.
Claims (4)
1. A device for synthesizing chloro-palm oil methyl ester by palm oil methyl ester is characterized in that: the device comprises a chlorination main tower (1), a chlorination auxiliary tower (2), an oil-gas separation tower (3), a falling film absorption tower (4), a nitrogen making unit (5), a deacidification kettle (6) and a circulating absorption tank (7); an outlet pipeline at the top of the chlorination main tower (1) is connected with an inlet at the middle lower part of the chlorination auxiliary tower (2); the top outlet pipeline of the chlorination auxiliary tower (2) is connected with the middle upper part of the oil-gas separation tower (3); the falling film absorption tower (4) is provided with two stages, an outlet pipeline at the top of the first-stage falling film absorption tower is connected with the middle part of the second-stage falling film absorption tower, and the falling film absorption tower (4) absorbs the hydrogen chloride tail gas through high-purity water; the top outlet pipeline of the oil-gas separation tower (3) is connected with the middle part of the primary falling film absorption tower; outlets at the bottoms of the first-stage falling film absorption tower and the second-stage falling film absorption tower are connected with a circulating absorption tank (7) through pipelines, and outlets of the circulating absorption tank (7) are connected to the tops of the first-stage falling film absorption tower and the second-stage falling film absorption tower through pipelines; the middle-upper part of the chlorination main tower (1) is provided with a feed inlet, the middle-lower part is connected with a chlorine gas source, a bottom outlet pipeline is divided into two paths, one path is connected with a nitrogen making unit (5) to prepare high-purity nitrogen, and the other path is connected to the top of the deacidification kettle (6) to deacidify the synthetic product and remove hydrogen chloride.
2. The apparatus for synthesizing chlorinated palm oil methyl ester from palm oil methyl ester as claimed in claim 1, wherein: chlorination king-tower (1) and chlorination auxiliary tower (2) all are equipped with the observation hole and install the LED lamp to improve the synthetic efficiency.
3. The apparatus for synthesizing chlorinated palm oil methyl ester from palm oil methyl ester as claimed in claim 1, wherein: and a bottom discharge hole pipeline of the oil-gas separation tower (3) is connected with a reflux pump, and the reflux pump is connected to a feed inlet of the chlorination auxiliary tower (2).
4. The apparatus for synthesizing chlorinated palm oil methyl ester from palm oil methyl ester as claimed in claim 1, wherein: and the inlet and the outlet of the chlorination main tower (1) and the chlorination auxiliary tower (2) are both provided with valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122917067.XU CN216499252U (en) | 2021-11-25 | 2021-11-25 | Device for synthesizing chloro-palm oil methyl ester by using palm oil methyl ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122917067.XU CN216499252U (en) | 2021-11-25 | 2021-11-25 | Device for synthesizing chloro-palm oil methyl ester by using palm oil methyl ester |
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| Publication Number | Publication Date |
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| CN216499252U true CN216499252U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122917067.XU Active CN216499252U (en) | 2021-11-25 | 2021-11-25 | Device for synthesizing chloro-palm oil methyl ester by using palm oil methyl ester |
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| CN (1) | CN216499252U (en) |
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2021
- 2021-11-25 CN CN202122917067.XU patent/CN216499252U/en active Active
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