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A kind of liquefied petroleum gas with low ethanol content and preparation method thereof

A technology of liquefied petroleum gas and petroleum gas, applied in the petroleum industry, gas fuel, fuel and other directions, can solve the problems of uniform mixing of difficult liquid and gas, human poisoning or suffocation, air pollution, etc., to avoid emissions, reduce human poisoning or Choking, energy saving effect

Active Publication Date: 2022-04-15
刘宗蒲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to develop a new type of liquefied petroleum gas with low ethanol content, low use cost, green environmental protection and high oxygen content, and provide a simple and easy preparation method with uniform mixing of ethanol and petroleum gas to solve the current problem of liquefied petroleum gas Energy waste caused by incomplete combustion, harmful gas emissions, air pollution and easy poisoning or suffocation of the human body, and the difficulty of achieving uniform mixing of liquid and gas with traditional methods

Method used

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preparation example Construction

[0023] Another object of the present invention is to provide the above-mentioned method for preparing liquefied petroleum gas with low ethanol content, which specifically includes the following steps:

[0024] Step 1: Heating the liquid ethanol to 78~90°C by water bath heating method, so that the liquid ethanol evaporates into ethanol gas;

[0025] Step 2: Mix 8%~20% ethanol gas with 92%~80% petroleum gas evenly according to the volume percentage ratio of the gas to obtain a mixed gas;

[0026] Step 3: Apply a certain pressure to the mixed gas at room temperature to liquefy the mixed gas into a mixed liquid to form liquefied petroleum gas with low ethanol content evenly mixed with ethanol and petroleum gas.

[0027] Further, the pressure in the third step is 0.75~1.77MPa.

[0028] Further, the carbon monoxide emission of the liquefied petroleum gas with low ethanol content can be reduced by at least 30%.

Embodiment 1

[0030] Heating the liquid ethanol to 78°C by water bath heating, so that the liquid ethanol evaporates into ethanol gas; then, according to the volume percentage ratio of the gas, 8% ethanol gas and 92% petroleum gas are uniformly mixed, Obtain the mixed gas; followed by applying a pressure of 0.75MPa to the mixed gas at room temperature to liquefy the mixed gas into a mixed liquid, and obtain a gas whose volume percentage is 8% ethanol and a gas whose volume percentage is 92%. Low ethanol content liquefied petroleum gas composed of homogeneously mixed petroleum gas.

Embodiment 2

[0032] Using the water bath heating method, the liquid ethanol is heated to 90°C to evaporate the liquid ethanol into ethanol gas; then, according to the volume percentage ratio of the gas, 10% ethanol gas and 90% petroleum gas are uniformly mixed, Obtain the mixed gas; followed by applying a pressure of 1.0MPa to the mixed gas at room temperature to liquefy the mixed gas into a mixed liquid, and obtain a 10% ethanol by volume of the gas and 90% ethanol by volume of the gas Low ethanol content liquefied petroleum gas composed of homogeneously mixed petroleum gas.

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Abstract

The invention belongs to the technical field of new energy, and in particular relates to a liquefied petroleum gas with low ethanol content and a preparation method thereof. The present invention improves the combustion quality of the existing liquefied petroleum gas by uniformly adding ethanol with high oxygen content to the petroleum gas , to reduce air pollution and harm to the human body, a new type of liquefied petroleum gas with low ethanol content that is evenly mixed with ethanol and petroleum gas has been developed, and a low ethanol content has been developed by combining water bath heating evaporation with room temperature pressurized liquefaction High-efficiency preparation method of novel liquefied petroleum gas. The liquefied petroleum gas with low ethanol content has high oxygen content, high calorific value, uniform mixing of ethanol and petroleum gas, low use cost, abundant resources, high preparation efficiency, easy industrial production, uniform and complete combustion, and is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of new energy, and in particular provides a low ethanol content liquefied petroleum gas and a preparation method thereof. [0002] technical background [0003] Petroleum gas is a kind of petroleum tail gas left in the process of refining gasoline, kerosene, diesel oil, heavy oil and other oil products. It is a gas under normal pressure. Through a certain process, the petroleum tail gas is recycled and pressurized. , make it into a liquid, and put it in a pressure vessel to obtain liquefied petroleum gas. The main components of petroleum gas include propylene, propane, butene and butane, etc., and its calorific value is high (87.9-108.9MJ / m 3 ), is currently one of the main residential and industrial gaseous fuels. LPG is a liquid in a pressurized gas cylinder, and once it flows out, it will vaporize into a combustible gas about 250 times larger than its original volume. The price of liquefied petroleum ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/12
CPCC10L3/12
Inventor 刘宗蒲
Owner 刘宗蒲
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