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Diesel wax-crystal nucleation dispersant and its synthesis

A technology of dispersant and diesel wax, which is applied in the field of rosin acid higher alcohol ester or amide and its synthesis, to achieve the effects of enhanced pour point depressant effect, broad application prospect and low production cost

Active Publication Date: 2007-04-04
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, higher alcohol esters / amides of rosin acid have not been reported as wax crystal nucleating and dispersing agents

Method used

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  • Diesel wax-crystal nucleation dispersant and its synthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 0.04 mol of abietic acid, add it to a 250ml flask, add 20ml of toluene, start the stirring device, and completely dissolve the abietic acid. Take 0.03 mol of thionyl chloride, add it to the dropping funnel, add it dropwise to the flask, control the dropping rate of thionyl chloride, and complete the addition in about 45 minutes. At the same time, use a gas absorption device with a calcium chloride drying tube (drying tube → buffer bottle → absorption bottle, the absorption liquid is NaOH or Na 2 CO 3 Solution) to absorb the SO generated by the reaction 2 And HCl gas. After the addition is complete, start to heat slowly when no bubbles are released, and heat to about 80°C, after a constant temperature of 1.5h, when no obvious bubbles are released, stop heating.

[0018] Add 0.04mol hexadecyl alcohol, and add 20ml toluene, gradually increase the temperature to about 120℃, keep constant temperature for 1h, when no obvious bubbles are released, stop heating; change the dev...

Embodiment 2

[0020] Take 0.04 mol of abietic acid, add it to a 250ml flask, add 20ml of toluene, start the stirring device, and completely dissolve the abietic acid. Take 0.02 mol of thionyl chloride, add it to the dropping funnel, add it dropwise to the flask, control the dropping rate of thionyl chloride, and complete the addition in about 45 minutes. At the same time, use a gas absorption device with a calcium chloride drying tube (drying tube → buffer bottle → absorption bottle, the absorption liquid is NaOH or Na 2 CO 3 Solution) to absorb the SO generated by the reaction 2 And HCl gas. After the addition is complete, start to heat slowly when no bubbles are released, and heat to about 100°C. After a constant temperature for 2 hours, when no obvious bubbles are released, stop heating.

[0021] Add 0.02mol dodecanol, and add 20ml toluene, gradually increase the temperature to about 90℃, keep the temperature for 1h, after no obvious bubbles are released, heat up and steam to remove the tolu...

Embodiment 3

[0023] Take 0.04 mol of dehydroabietic acid, add it to a 250ml flask, add 20ml of toluene, start the stirring device, so that the rosin acid is completely dissolved. Take 0.05 mol of thionyl chloride, add it to the dropping funnel, add it dropwise to the flask, control the dropping rate of thionyl chloride, and complete the addition in about 45 minutes. At the same time, use a gas absorption device with a calcium chloride drying tube (drying tube → buffer bottle → absorption bottle, the absorption liquid is NaOH or Na 2 CO 3 Solution) to absorb the SO generated by the reaction 2 And HCl gas. After the addition is complete, start to heat slowly when no bubbles are released, and heat to about 70°C. After a constant temperature for 3 hours, when no obvious bubbles are released, stop heating.

[0024] Add 0.04mol myristyl alcohol, and add 20ml of toluene, gradually increase the temperature to about 130°C, keep the temperature for 2h, and stop heating after no obvious bubbles are relea...

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PUM

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Abstract

A diesel-oil cerotin nucleation dispersant and its synthesis are disclosed. The process is carried out by acyl chloride reacting abietic acid with acyl sulfinyl or sulfoxide chloride in proportion of 1:0.5-1.5mol at 120 degree for 1-3hrs, obtaining abietic acid acyl chloride, and holysis or amination reacting abietic acid acyl chloride with higher fatty alcohol or higher fatty amide in proportion of 1:0.5-1.5mol at 90-130 degree for 1-3hrs to obtain the final product. It's cheap and convenient, it can strengthen pour-point effect of various-type diesel oils and decrease CFPP and improve low-temperature flow fluidity.

Description

Technical field [0001] The invention relates to a higher alcohol ester or amide of rosin acid and a synthesis method thereof, in particular to a higher alcohol ester or amide of rosin acid which can be used as a diesel wax crystal nucleating dispersant and a synthesis method thereof. Background technique [0002] When the wax content in diesel is 1% or higher, wax flakes and needle crystals will precipitate at low temperatures, which are connected to each other in the oil to form a three-dimensional network structure, and absorb and wrap the oil with a lower freezing point. A solid similar to grease is formed and cannot pass through the filter of the diesel engine smoothly. Although the oil has not completely lost its fluidity at this time, it has been unable to make the diesel engine get fuel supply. The temperature at this time is the cold plugging point (CFPP) of diesel. As an indicator of diesel low-temperature flow performance, it can correctly judge the low-temperature perf...

Claims

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Application Information

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IPC IPC(8): C10L1/224
Inventor 西晓丽商红岩赵光辉徐鸣齐泮仑王熺张国静崔俊峰岳馥川牛明关旭邵伟董平赵红艳李国臣秦丽华田炳全马建英
Owner PETROCHINA CO LTD
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