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Ways to reduce friction during ethanol transport

A technology of ethanol and polymer, which is applied in the direction of mechanical equipment, fuel, lubricating composition, etc., can solve the problem of being insoluble in ethanol, etc., and achieve the effect of reducing friction and reducing energy

Active Publication Date: 2020-01-10
S P C M SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Polymers with the highest molecular weight are polyacrylamide derivatives, however their existing products are not soluble in ethanol

Method used

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  • Ways to reduce friction during ethanol transport
  • Ways to reduce friction during ethanol transport

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1: DMA homopolymer

[0055] A water phase was prepared by mixing 520 g of N,N dimethylacrylamide (DMA) and 978.2 g of permuted water. The pH was adjusted to 5 by adding 1.8 g of acetic acid. Add multiple additives in this aqueous phase: the concentration of 0.04g is 40% sodium diethylenetriaminepentaacetate (sodium diethylenetriaminepentaacetate) solution, the sodium hypophosphite of 0.01g and the azobisisobutyronitrile (azo- bis-isobutyronitrole). Polymerization is carried out in an adiabatic environment by adding redox couples (typically sodium persulfate / ferrous salts). The temperature rose to 70°C within 4 hours. The final product is a gel which is dried, milled and rolled to obtain the desired product in powder form.

Embodiment 2

[0056] Embodiment 2: DMA / ATBSNa copolymer 95 / 5 (mol %)

[0057] The method of Example 1 was used again, but the composition in the aqueous phase was changed to: 494g of N,N dimethylacrylamide (DMA), 120.25g of 50% acrylamidomethylpropanesulfonic acid (acrylamido -methyl-propyl-sulfonic acid, ATBSNa) sodium salt solution, 2.25g of acetic acid to reach a pH of 4 and 883.5g of replacement water.

Embodiment 3

[0058] Embodiment 3: DMA / ADAMQUAT copolymer 95 / 5 (mole %)

[0059] The method of Example 1 was used again, but the composition in the aqueous phase was changed to: 493.75 g of N,N dimethylacrylamide (DMA), 63.55 g of 80% acryloyloxyethyltrimethyl Ammonium chloride (acryloyl-ethyl-trimethylammonium chloride, ADAMQUAT) solution, 9.125g of acetic acid to achieve a pH of 4.2 and 933.575g of replacement water.

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Abstract

The present invention relates to a method of reducing friction in ethanol during its transport through pipelines. The method comprises mixing ethanol with a polymer-based composition, characterized in that the polymer is obtained from at least 50 mole % of at least one monomer selected from the group consisting of N-substituted acrylamides, N-substituted methacrylamide, N,N substituted acrylamide, N,N substituted methacrylamide, substituted acrylate and substituted methacrylate. The method of the present invention helps reduce friction to improve ethanol transport.

Description

technical field [0001] The present invention relates to the field of ethanol transportation. The present invention relates to the application of a specific polymer as a drag reducer in ethanol transportation. Background technique [0002] The transport of ethanol, especially bioethanol, is an important substance in an environment of energy change (fossil fuels are gradually being replaced by alternatives). Ethanol produced from biomass (bioethanol) is highly developed, and we face the challenge of efficiently delivering it over long distances. [0003] In 1949 (Proceedings of the International Conference on Rheology, North Holland), Tom found that adding a small amount of polymer to a turbulent liquid could improve its transport by reducing friction. [0004] Water-soluble polymers with large molecular weights are known to act as drag reducers in aqueous solutions. The stretching of polymer chains in solution helps to ease turbulence when liquids are transported at high s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F20/54C08F20/10F17D1/08
CPCC10L2200/0469C10L1/023C10L1/1963C10L1/2364C10L2230/14C10L2250/04C10M151/02
Inventor C·法韦罗O·布劳恩P·褚克乐B·奎利恩
Owner S P C M SA