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A kind of oil coagulant and preparation method thereof

A kind of oil coagulant, a certain amount of technology, applied in the field of petroleum industry technology and environmental protection, can solve the problems of complex production process, slow oil coagulation speed, secondary pollution, etc., to improve catalytic efficiency, avoid enzyme loss, high-efficiency activity Effect

Inactive Publication Date: 2020-02-07
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems that existing oil-condensing agents still have slow oil-condensing speed, easy to cause secondary pollution, complex production process and high cost, the present invention uses biodegradable substances erythritol and vinyl laurate as substrates, and through biocatalysis , to prepare a new type of oil coagulant that is biodegradable, non-secondary pollution, fast oil coagulation speed, and low price, so as to realize the recovery of marine oil spills and alleviate the harm caused by oil spill pollution

Method used

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  • A kind of oil coagulant and preparation method thereof
  • A kind of oil coagulant and preparation method thereof
  • A kind of oil coagulant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Preparation of onion-like mesoporous silica

[0051] Polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymer (P123) was used as a template, and tetraethyl orthosilicate (TEOS) was used as a silicon source, and was synthesized by a hydrothermal method. The specific steps are as follows: add 4.0g of P123 into the beaker, add 150mL of 1.6M hydrochloric acid, place the beaker in a water bath at 20°C, stir with a stirring paddle at 250rpm / min for 3h, add 2g of mesitylene TMB, and stir at room temperature for 5h at 250rpm / min . After that, the temperature of the water bath was raised to 40°C, and 8.5g of TEOS was added during rapid stirring (350rpm / min). After the TEOS was mixed evenly, the speed was reduced to 250rpm / min, and stirred for 20h. After the reaction was completed, the emulsion was transferred to a polytetrafluoroethylene-lined hydrothermal reaction kettle, and crystallized at 100° C. for 24 hours in an electric constant temperature blast drying oven....

Embodiment 2

[0053] (1) Take by weighing 1 g of onion-like mesoporous silica in Example 1 for subsequent use;

[0054] (2) Modification of mesoporous silica: Weigh 0.2 g of a certain amount of mussel plantar protein substitute dopamine, and add dopamine into 200 ml of phosphate buffer solution (100 mM, pH7.0) that has been measured. After the dopamine is fully dissolved, quickly add 1 g of mesoporous silica in step (1), stir for 3 h, centrifuge at 7000 rpm, wash with 500 ml of phosphate buffer solution and centrifuge, heat and dry at 40 ° C to obtain modified mesoporous silica 0.96 g;

[0055] (3) Preparation of immobilized lipase: Dissolve 0.5 g of the modified mesoporous silica in step (2) completely in 50 ml of phosphate buffer, add 0.5 g of lipase, stir to obtain a mixed solution, 7000 rpm Centrifuge, pour off the supernatant, then add 50ml of phosphate buffer, shake fully to dissolve the solid, then centrifuge at 7000rpm, pour off the supernatant, repeat 3 times, finally, take out 0....

Embodiment 3

[0058] (1) Take by weighing 2 g of onion-like mesoporous silica in Example 1 for subsequent use;

[0059] (2) Modification of mesoporous silica: Weigh 0.4 g of a certain amount of mussel plantar protein substitute dopamine, and add dopamine to the measured 400 ml phosphate buffer solution (100 mM, pH7.0). After the dopamine is fully dissolved, quickly add 2 g of mesoporous silica in step (1), stir for 4 h, centrifuge at 7000 rpm, wash with 500 ml of phosphate buffer solution and centrifuge, heat and dry at 40 ° C to obtain modified mesoporous silica 1.98 g;

[0060] (3) Preparation of immobilized lipase: Dissolve 1 g of the modified mesoporous silica in step (2) completely in 100 ml of phosphate buffer, add 1 g of lipase, stir to obtain a mixed solution, centrifuge at 7000 rpm, Pour off the supernatant, then add 100ml of phosphate buffer, shake fully to dissolve the solid, then centrifuge at 7000rpm, pour off the supernatant, repeat 3 times, finally, take out 1.66g of precipi...

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Abstract

The invention relates to the technical fields of the petroleum industry and environmental protection, in particular to an oil gelling agent and a preparation method thereof. With biodegradable erythritol and vinyl laurate as a substrate, the novel oil gelling agent is prepared through biocatalysis. The oil gelling agent has the advantages of degradability, no secondary pollution, high oil gelling speed and low price, thereby achieving marine oil spill recovery and reducing hazards caused by pollution.

Description

technical field [0001] The invention relates to the fields of petroleum industry technology and environmental protection technology, in particular to an oil coagulant and a preparation method thereof. Background technique [0002] With the development of the global economy, the world's demand for oil is increasing day by day. Oil spill pollution accidents occur frequently during oil exploration and transportation, which not only cause serious damage to the marine ecological environment, but also cause carcinogens in oil pollution to enter marine organisms through the food chain. Accumulation and concentration can threaten human health. The gelling agent can gel crude oil, light oil, vegetable oil, hydrocarbons, etc. into solid or semi-solid oil lumps, which float on the sea surface, which is convenient for salvage and recovery and removal of oil spills on the sea surface. So far, various oil coagulants such as sorbitol type, polyvinyl alcohol type, and amino acid type have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C69/33C12P7/62C12N11/14C09K3/32
CPCC07C69/33C09K3/32C12N11/14C12P7/62
Inventor 李焰旺高军凯孙泽陈妍雷浩高书峰
Owner ZHEJIANG OCEAN UNIV
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