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Nonstandard diesel oil treatment technology and apparatus thereof

A treatment process and treatment device technology, applied in the field of deep processing of oil products, can solve problems such as reduced production efficiency, oil loss, product color, excessive sulfur content, etc., to ensure quality stability, reduce environmental pressure, and improve production efficiency Effect

Inactive Publication Date: 2014-11-19
SHENZHEN SENKEYAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, because the sulfonated product of concentrated sulfuric acid usually has a certain degree of hydrophilicity, the oil product is prone to emulsification during the washing process, resulting in difficulty in phase separation. Either the water content in the oil phase is too high, or the oil content in the water phase is too much, or both However, a longer standing time is required, resulting in a greatly reduced production efficiency, and it is easy to cause oil loss, unstable product quality, and excessive acid value.
During the production process of this process, a large amount of acid mist will appear, and at the same time, a large amount of acid, lye, acid residue, and oily sewage generated by side reactions will be discharged, causing huge environmental pollution
[0005] Simple adsorption is to use activated clay and other adsorbents to adsorb and decolorize oil products by using adsorption columns or even simply stirring and standing still. The adsorbent cannot be regenerated after use. Poor, so the product color and sulfur content often exceed the standard during production

Method used

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  • Nonstandard diesel oil treatment technology and apparatus thereof
  • Nonstandard diesel oil treatment technology and apparatus thereof
  • Nonstandard diesel oil treatment technology and apparatus thereof

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Embodiment 1

[0047] The non-standard diesel processing device of this embodiment also includes an adsorption separation chamber, the inlet end of which is provided with a second liquid inlet pump, and an adsorption column is arranged in the adsorption separation chamber; the adsorption separation chamber is used to separate Impurities and sulfur-containing components that are very close in volume and polarity to diesel components will be entrained through the treatment membrane and mixed in the diesel. The impurities and sulfur-containing components can be adsorbed and filtered through adsorption treatment, so that the primary diesel liquid can be made into refined diesel liquid.

[0048] Further, it also includes an adsorption column refurbishment device, which includes a heating device, a blower and a cyclone separation tank, which are connected to each other by pipelines, thereby providing a suitable temperature and aerobic environment for the adsorbed saturated molecular sieve , in thi...

Embodiment 2

[0050] The non-standard diesel processing device of this embodiment also includes a circulation tank, the outlet of the circulation tank is connected to the membrane separator, and the inlet of the circulation tank is connected to the outlet of the heater; the circulation tank is used to store The non-standard diesel oil in the machine is waiting to participate in the next cycle until all the non-standard diesel oil is extracted.

Embodiment 3

[0052] The non-standard diesel processing device of this embodiment also includes a falling film evaporator, the falling film evaporator includes a heat exchanger, a gas-liquid separation tank and a vacuum system, the heat exchanger is connected to the gas-liquid separation tank, the The vacuum system is connected with the heat exchanger and the gas-liquid separation tank, so that the internal environment of the heat exchanger and the gas-liquid separation tank is in a vacuum, the heat exchanger includes more than two heat exchange tubes, and the falling film evaporator The top of the tank is provided with a liquid separator, which is set correspondingly to the liquid inlet of the heat exchanger, and the top of the gas-liquid separation tank is connected to a condenser through a pipeline; the falling film evaporator adopts vacuum evaporation, which reduces impurities Evaporation temperature, on the one hand, avoids the deterioration and decomposition of organic molecules at hig...

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Abstract

The invention relates to a nonstandard diesel oil treatment technology. The technology comprises the following steps: 1, carrying out membrane separation treatment on nonstandard diesel oil at 30-80DEG C under 0.2-0.4MPa in order to obtain a primary treated diesel oil liquid; and 2, carrying out adsorption treatment and / or falling film evaporation treatment on the primary treated diesel oil liquid in order to obtain a purified diesel oil liquid. The invention relates to a nonstandard diesel oil treatment apparatus. The nonstandard diesel oil treatment technology solves the secondary environmental pollution problem of original technologies, and the above obtained product processed through the technology has greatly better chroma and sulfur content index than products obtained through the original technologies, and accords with requirements of national standard diesel oil IV.

Description

technical field [0001] The invention relates to the technical field of deep processing of oil products, in particular to a non-standard diesel oil treatment process and device. Background technique [0002] In the petrochemical industry, there is a large amount of straight-run diesel and secondary processed diesel. Due to the insufficient refining process, these diesel oils contain a certain amount of impurities, such as colloids, unsaturated olefins, sulfur-containing, nitrogen-containing, and oxygen-containing compounds, which make the color too dark, and the sulfur content does not meet the diesel national standard IV or even the national standard The standard of III can only appear in the form of national standard II diesel. As for the oil produced by pyrolysis of waste lubricating oil, its flash point, cetane number and other indicators can meet the indicators of diesel oil, but because its color and sulfur content do not meet the standards, it can only be sold as fuel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/02C10G53/08
Inventor 王嘉庆江冠金赵琪
Owner SHENZHEN SENKEYAN TECH
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