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Process for preparing biological oil

A bio-oil and process technology, applied in biofuel, petroleum industry, immiscible liquid separation, etc., can solve the problems of difficult effective separation, low separation efficiency, complex components, etc., and achieve the best hydrophilic performance effect

Active Publication Date: 2017-05-31
北京启弘蓝环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] In the above-mentioned documents and other existing technologies, although there are some separation methods for oil or hydrocarbon fuel and water, there is a big difference between the bio-oil obtained by high-temperature distillation and carbonization of garbage and ordinary oil or hydrocarbon substances, even in After hydrotreating and upgrading, its composition is still very complex. Compared with oil or hydrocarbon fuel, the number of components is several times more, and there are also many polar components, which are very easy to form an emulsion with water. This emulsion is due to It is easy to form azeotrope, and it is difficult to effectively remove it by rectification. When it is treated by membrane separation method, the separation efficiency is usually very low, for example, it is difficult to effectively separate and the separation flux is very low

Method used

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Examples

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Embodiment 1

[0080] The polyvinylidene fluoride-hexafluoropropylene separation membrane is modified by the following method with cellulose to prepare a modified polyvinylidene fluoride-hexafluoropropylene separation membrane: (1) polyvinylidene fluoride-hexafluoropropylene separation membrane is prepared: Fluoropropene (PVDF-HFP) was dissolved in acetone and DMF mixed solution (acetone:DMF volume ratio is 3:1), and the solution that makes concentration is 10wt.%; (2) use electrospinning device (Nanon-01A , available from MECC Japan) for electrospinning, wherein the temperature of the electrospinning chamber is room temperature, and the relative humidity is 45%; the solution is placed in an electrospinning syringe, and the diameter of the syringe needle is 0.3 mm; between the needle and A voltage of 25 kV was applied between the rotating disks, and the solution feeding rate was maintained at 1.0 ml / h. The membrane composed of electrospun fibers (ie, electrospun fiber membrane) was collected ...

Embodiment 2

[0084] Select domestic waste from the waste compression and transfer station in Haidian District, Beijing, and carry out high-temperature distillation carbonization on the above-mentioned waste through the following steps: (1) put the waste into the waste transport device; (2) pass the waste transport device through the high-temperature distillation carbonization (3) take out the gas flow of crude bio-oil and water vapor from the upper part of the high-temperature distillation carbonization device; (4) make the gas flow pass through the catalyst bed in gaseous form; (5) condense the effluent from the catalyst bed to obtain A mixture of upgraded bio-oil and water; (6) Obtaining charcoal materials from a garbage transport device passing through a high-temperature distillation carbonization device. The high-temperature distillation carbonization device is heated by high-temperature oxygen-free steam, the temperature of the high-temperature oxygen-free steam is 350°C, the nitrogen ...

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Abstract

The invention provides a process for preparing biological oil. The process comprises the following steps: carrying out high-temperature distillation and carbonization on garbage to obtain a gas flow containing crude biological oil and water vapor; carrying out hydrogenation treatment on the gas flow, and carrying out quality improvement on the crude biological oil in the gas flow; condensing the gas flow subjected to the hydrogenation treatment, and obtaining the biological oil with the improved quality through a membrane separation method. The process is especially suitable for separation of the biological oil and water.

Description

technical field [0001] The invention belongs to the technical field of bio-oil fuel production, and in particular relates to a process for preparing bio-oil, and more particularly to a process for preparing high-quality bio-oil by a membrane separation method. Background technique [0002] Bio-oil crude oil is usually of poor quality and needs subsequent modification and upgrading to meet fuel requirements. Bio-oil upgrading mainly includes hydrodeoxygenation, catalytic cracking, catalytic reforming and catalytic esterification. Catalytic upgrading can change the composition of bio-oil and fundamentally change the quality of bio-oil. Key technologies such as yield and efficiency in production have yet to be broken through. How to reduce the water content of bio-oil or how to separate bio-oil from water has always been one of the technical problems. [0003] With the rapid development of the economy and the continuous acceleration of the urbanization process, the number of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/00C10B53/02B01D17/02B01D53/00B01D67/00B01D71/34
CPCB01D17/085B01D53/002B01D67/0093B01D71/34C10B53/02C10L1/00C10L2200/0469Y02E50/10
Inventor 韩先福王红军贺伟力
Owner 北京启弘蓝环保科技有限公司