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Saponin plant extract type hydrate anti-agglomerant

A technology of plant extracts and saponins is applied in the field of hydrate anti-aggregation agent, saponin plant extract type hydrate anti-aggregation agent, inhibiting hydrate accumulation, and can solve the problems of high cost, high toxicity and high consumption, and achieves the The effect is good, the particle distribution is uniform, and the effect of solving the problem of flow safety guarantee

Active Publication Date: 2012-10-24
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a new and efficient hydrate anti-polymerization agent for the defects of high consumption, high cost, and high toxicity of traditional hydrate anti-polymerization agents. The anti-polymerization agent is A saponin plant extract, which is cheap, convenient and quick to prepare, can effectively prevent the coalescence of hydrates, has the characteristics of less dosage, good effect, non-toxic, economical and environmental protection, etc.

Method used

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  • Saponin plant extract type hydrate anti-agglomerant
  • Saponin plant extract type hydrate anti-agglomerant
  • Saponin plant extract type hydrate anti-agglomerant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides a hydrate antipolymerization agent, which is a saponin plant extract type hydrate antipolymerization agent, which is prepared by the following steps:

[0058] First select 100 g of saponin bark (the remaining skin after the saponin pod is removed from the fruit), and grind the saponin bark into powder by using a pulverizer to obtain saponin powder;

[0059] The saponin powder is injected into a Soxhlet extractor, and 600g of ethanol is added for 3 hours of extraction to obtain a mixed solution;

[0060] Use Buchner funnel to carry out suction filtration to the mixed solution, and the filtrate is distilled under reduced pressure with a rotary evaporator to stop when there is solid precipitation. Concentrate and recovered ethanol solvent.

[0061] The above-mentioned concentrated solution is the plant-extracted hydrate antipolymerization agent.

[0062] The extractive hydrate antipolymerization agent prepared by this method has a total saponin c...

Embodiment 2

[0064] In this example, the hydrate anti-aggregation agent prepared in Example 1 is used as an example for calculation to evaluate the cost of the plant-extracted hydrate anti-aggregation agent.

[0065] The plant-extracted hydrate anti-aggregation agent prepared in Example 1 is 101.5g. The quality of the plant-extracted hydrate anti-aggregation agent obtained during different batches of experimental operations is different. For the convenience of calculation, take 100g of saponin powder to prepare 100g Plant-extracted hydrate anti-polymerization agent, the recovered ethanol is about 480g, and the energy consumption for extraction is about 2 kWh. It can be leached with ethanol at room temperature in large-scale production, so the energy consumption in large-scale production is much lower. at this value. The price of 1 ton of saponin plant extract = 2000 (yuan / ton saponin bark) × 1 ton + 6800 (yuan / ton ethanol) × 1.2 tons + 20 million hours × 0.5 yuan / kWh × 10000 = 20160 yuan / ...

Embodiment 3

[0070]In this example, the hydrate antipolymerization agent prepared in Example 1 was taken as an example to conduct a toxicity test.

[0071] In this toxicity test, ornamental goldfish sold in the market were used, and 500ppm-2000ppm of the plant-extracted hydrate antipolymerization agent prepared in Example 1 was added to the water, and the survival of the goldfish in the water was observed after 24 hours. During the test, the goldfish in the water containing 2000ppm hydrate anti-aggregation agent did not die after 24 hours, which shows that the plant-extracted hydrate anti-aggregation agent prepared in Example 1 has no toxicity or very little toxicity.

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Abstract

The present invention relates to a saponin plant extract type hydrate anti-agglomerant. The hydrate anti-agglomerant is a saponin plant extract, which contains 5-30 wt% of saponin, calculated by a total weight of the saponin plant extract. Compared with an existing anti-agglomerant, the plant extract type hydrate anti-agglomerant provided by the invention is more conducive to the realization of hydrate dynamic control technology, and ensures that hydrate crystals exist in state of small particles in an oil-gas-water multiphase mixing transport pipeline and do not generate accumulation or deposition, thereby effectively solving a problem of flowing safety in the multiphase mixing transport pipeline. The hydrate anti-agglomerant also has characteristics of no toxicity, thrift and environment-friendliness, good effect, and uniformly distributed particles of the generated hydrate.

Description

technical field [0001] The invention relates to a hydrate antipolymerization agent, in particular to a saponin plant extraction type hydrate antipolymerization agent. The invention also relates to a method for suppressing hydrate accumulation in a transportation system by using the hydrate antipolymerization agent, which belongs to the field of oil and gas transportation. Background technique [0002] Gas hydrate is a non-stoichiometric cage-like crystal substance formed by water and small molecular gases such as methane, ethane, and carbon dioxide at a certain temperature and pressure (usually low temperature and high pressure), so it is also called cage hydrate . Gas hydrates usually exist in liquid in the form of solids, so the formation of hydrate solids usually affects the production and transportation of oil and gas companies, such as hydrate solids block pipelines or transportation pipelines, valves, safety tanks and other devices, Cause production reduction, stop p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J53/00F17D1/17
Inventor 陈光进李文志李清平孙长宇穆亮陈俊彭宝仔杨云涛孟浩
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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