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A kind of demulsifier, treatment method and application of rice straw

A technology of rice straw and demulsifier, which is applied to the treatment of raw materials of rice straw and the field of demulsifier, can solve the problems of poor demulsification effect and complicated preparation process, and achieve the effect of efficient demulsification.

Active Publication Date: 2022-03-15
湖北鑫城普瑞化学科技有限公司
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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 overcome the above-mentioned technical deficiencies, provide a treatment method and application of a demulsifier and rice straw, and solve the technical problems in the prior art that the preparation process of demulsification substances is complicated and the demulsification effect is poor

Method used

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  • A kind of demulsifier, treatment method and application of rice straw
  • A kind of demulsifier, treatment method and application of rice straw
  • A kind of demulsifier, treatment method and application of rice straw

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Embodiment 1

[0026] This embodiment proposes a demulsifier, which is obtained by the following processing method: crush the rice straw raw material into powder and sieve it with a 200-mesh sieve, mix 1.5 g of the sieved rice straw powder with an acetic acid solution with a concentration of 0.25 mol / L Mix 100mL in a 250mL Erlenmeyer flask, carry out a stirring reaction at room temperature at a stirring speed of 1000 rpm for 24 hours, filter the reacted rice straw raw material and wash it with distilled water until neutral, then dry it at 70°C for 24 hours. .

[0027] From figure 1 It can be seen that at 482cm -1 SiO 2 Si-O-Si and Si-O-C characteristic peaks at 3420cm -1 、1635cm -1 、1062cm -1 The characteristic peaks of hydroxyl groups appeared at , indicating that Si-O-Si, Si-O-C and hydroxyl groups existed in the treated rice straw at the same time.

[0028] From figure 2 It can be seen that the surface of the untreated straw is relatively smooth, from image 3 It can be seen that...

Embodiment 2

[0030] This embodiment proposes a demulsifier, which is obtained by the following processing method: including pulverizing the raw material of rice straw into powder and sieving with a 200-mesh sieve, and mixing 1.5 g of the sieved rice straw powder with 0.25 mol / L of acetic acid Mix 100mL of the solution in a 250mL Erlenmeyer flask, carry out a stirring reaction at room temperature at a stirring speed of 1000 rpm for 12 hours, filter the reacted straw raw material and wash it with distilled water until it is neutral, and then dry it at 70°C for 24 hours. Can.

Embodiment 3

[0032] This embodiment proposes a demulsifier, which is obtained by the following processing method: comprising pulverizing the raw material of rice straw into powder and sieving with a 100-mesh sieve, and mixing 1.5 g of the sieved rice straw powder with acetic acid having a concentration of 0.25 mol / L Mix 100mL of the solution in a 250mL Erlenmeyer flask, carry out a stirring reaction at room temperature at a stirring speed of 1000 rpm for 12 hours, filter the reacted straw raw material and wash it with distilled water until it is neutral, and then dry it at 70°C for 24 hours. Can.

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Abstract

The invention discloses a treatment method and application of a demulsifier and rice straw raw materials, belonging to the technical field of oil field chemicals. The processing method of the rice straw comprises reacting the raw material of the rice straw with an acid solution according to the material ratio (1.5-3) g:(100-150) mL, and then filtering and drying. The present invention also proposes a demulsifier, including the rice straw obtained by the above treatment method. In addition, the present invention also proposes an application of the above-mentioned demulsifier in the treatment of W / O crude oil emulsion. The demulsifier proposed by the invention can realize high-efficiency demulsification in a short time, and the demulsification rate is as high as more than 89%.

Description

technical field [0001] The invention relates to the technical field of oilfield chemicals, in particular to a treatment method and application of a demulsifier and rice straw raw materials. Background technique [0002] The treatment of stable emulsion is a very difficult problem in the oil recovery process. The addition of surfactants and the presence of natural surfactants in crude oil are the main reasons for the stability of emulsions. The presence of emulsified water will cause corrosion of crude oil pipelines, increase the viscosity of crude oil and increase transportation costs. In addition, it can lead to catalyst poisoning during the refining process. Therefore, the emulsified water must be separated before the crude oil is transported and refined. [0003] There are many demulsification technologies in the petroleum industry, among which chemical demulsification is the most widely used technology. In recent years, TiO 2 , SiO 2 , magnetic nanoparticles, carbo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K9/00B27K3/16B27K3/36C10G33/04B01D17/05
CPCB27K9/007B27K3/16B27K3/36C10G33/04B01D17/04B27K2200/10
Inventor 米远祝杨莹赵庆美曲宝龙
Owner 湖北鑫城普瑞化学科技有限公司
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