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A process for refining light diesel oil from waste oil

A light, diesel technology, applied in the petroleum industry, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve the problems of easy oxidation, strong odor, high density, etc.

Active Publication Date: 2017-01-25
旌德县绿洁生物能源研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The regeneration of waste engine oil currently uses methods such as sedimentation, distillation, pickling, alkali washing, and filtration to remove impurities in the oil, but the obtained diesel oil has black oil, high viscosity, high density, easy oxidation, and strong odor. defect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]Example 1: Put 10 tons of waste engine oil into a liquid-phase catalytic cracking furnace, and add a liquid-phase catalyst into the liquid-phase catalytic cracking furnace. The catalysts are: anhydrous sodium sulfate 0.75‰, ferrous sulfate 0.2‰, aluminum sulfate 0.5‰, sulfur Cobalt phthalocyanine 0.025‰; open the steam valve, turn on the blower, ignite and heat, when the temperature reaches 80°C, turn off the blower, continue heating, when the temperature reaches 170°C, close the steam valve, open the valve of the gas phase cracking furnace, and the oil and gas enter the gas phase cracking Furnace; add a lot of 20 cm thick ceramic round particle carrier (2 cm) into the gas phase cracking furnace, and then spread 1 cm and 0.5 cm small particles of porcelain on it (to spread the catalyst of small particles). , spread 30-50 cm of aluminum silicate, and finally spread 30-40 cm of Y-type molecular sieve granular catalyst on top of it, close the gas phase valve, open the liquid...

Embodiment 2

[0050] Example 2: Put 10 tons of plastic oil into a liquid-phase catalytic cracking furnace, add a liquid-phase catalyst in the liquid-phase catalytic cracking furnace, the catalyst is: zinc oxide 0.45‰, calcium oxide or clay 20‰, aluminum sulfate 0.25‰, sulfonated Phthalocyanine 0.015‰; open the steam valve, ignite and heat, when the temperature reaches 80°C, turn off the blower, continue heating, when the temperature reaches 170°C, close the steam valve, open the gas phase cracking furnace valve, the oil gas enters the gas phase cracking furnace; Add a lot of 20 cm thick ceramic round particle carrier (2 cm) into the furnace, and then spread 1 cm and 0.5 cm small particles of porcelain on it (for the catalyst of small particles) 50 cm of aluminum silicate, and finally spread 30-40 cm of Y-type molecular sieve granular catalyst on top of it, close the gas phase valve, open the liquid phase valve, and heat up in the stove. When the temperature rises above 80 ° C, a small amount...

Embodiment 3

[0052] Example 3: Put 10 tons of rubber oil into a liquid-phase catalytic cracking furnace, and add a liquid-phase catalyst in the liquid-phase catalytic cracking furnace. The catalyst is: zinc oxide 0.45‰, calcium oxide or clay 2‰, aluminum sulfate 0.25‰, sulfonated Phthalocyanine cobalt 0.015‰, then add 2.5‰-5‰ potassium hydroxide and 2.5‰-5‰ sodium hydroxide. The purpose of adding potassium hydroxide and sodium hydroxide is to solve the excessive odor of oil products. No need to add; open the steam valve, ignite and heat, when the temperature reaches 80°C, turn off the blower, continue heating, when the temperature reaches 170°C, close the steam valve, open the valve of the gas phase cracking furnace, and the oil gas enters the gas phase cracking furnace; Add a lot of 20 cm thick ceramic round particle carrier (2 cm) into the furnace, and then spread 1 cm and 0.5 cm small particles of porcelain on it (for the catalyst of small particles) 50 cm of aluminum silicate, and fina...

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Abstract

The invention provides a process of refining light diesel oil from waste oil. The process comprises the following steps: adding a liquid-phase catalyst into a liquid-phase catalytic cracking furnace, adding a gas-phase catalyst into a gas-phase cracking furnace, gasifying the waste oil by high-temperature heating, collecting oil and cooling the oil by a cooling furnace to obtain light crude oil; adding an impurity remover into the light crude oil, precipitating after stirring to remove trace thiol compound and acid substances in the crude oil, draining dregs, and neutralizing the crude oil by an alkaline compound to enable the crude oil to be transparent and bright; in order to enable the crude oil to never change in color, adding a discoloring stabilizer to conveniently refine light diesel oil from waste engine oil. The flash point of the obtained light diesel oil is greater than 55 DEG C, the color of the obtained light diesel oil is transparent light yellow, the recovery rate of the light diesel oil is over 85%, and thus, the color, the smell and the flash point of the obtained diesel oil satisfy the national standards.

Description

technical field [0001] The invention relates to the technical field of diesel oil refining, in particular to a process for refining light diesel oil from waste oil. Background technique [0002] Waste oils are those purified from crude oil or synthetically used and contaminated with physical or chemical impurities. Simply put, waste oils, as the name suggests, are oils that have been used, derived from petroleum or synthetic oils. During normal use, impurities such as dust, metal shavings, water or chemicals may become mixed with the oil. The regeneration of waste engine oil currently uses methods such as sedimentation, distillation, pickling, alkali washing, and filtration to remove impurities in the oil, but the obtained diesel oil has black oil, high viscosity, high density, easy oxidation, and strong odor. defect. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a process for refining light diesel oil from ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G55/06
CPCC10G55/06C10G2300/1007C10G2400/04
Inventor 王宝福王勇
Owner 旌德县绿洁生物能源研究中心