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Method for improving bio-oil stability by adding compound additives

A compound additive and bio-oil technology, which is applied in the fields of fuel additives, petroleum industry, liquid carbon-containing fuels, etc., can solve the problems of poor storage stability of bio-oil and large variation of kinematic viscosity with storage time, and improve the stability of bio-oil. , Effective storage time is long, and the effect of reducing the kinematic viscosity value

Active Publication Date: 2016-03-02
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problem of poor storage stability of biological oil and large change of kinematic viscosity with storage time, the present invention proposes a method for improving the stability of biological oil by adding compound additives

Method used

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  • Method for improving bio-oil stability by adding compound additives
  • Method for improving bio-oil stability by adding compound additives
  • Method for improving bio-oil stability by adding compound additives

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Embodiment 1

[0039] This embodiment relates to a method for improving the stability of bio-oil by adding composite additives, said method comprising the steps of:

[0040] Using rice husk as raw material, the bio-oil was produced by using the bubbling fluidized bed biomass rapid pyrolysis device independently developed by the Biomass Energy Engineering Center of the School of Agriculture and Biology, Shanghai Jiaotong University. This device has been published by Liu Ronghou et al. (Liu, R.H., Shen, C.J., Wu, H.J., etc. Characterization of bio-oil from fast pyrolysis of rice huskina fluidised bed reactor [J]. Journal of the Energy Institute, 2011, 84(2): 73-79.).

[0041] The first step, preparation of biomass raw materials: use rice husks, pass through sieves with different meshes, take the sifted rice husks, and dry them at 105±0.5°C for 48±0.05h; the sieved rice husks, grain The diameter is 60 mesh;

[0042] The second step, the production of bio-oil: use the bubbling fluidized bed bio...

Embodiment 2

[0069] This embodiment relates to a method for improving the stability of bio-oil by adding composite additives, said method comprising the steps of:

[0070] Using rice husk as raw material, the bio-oil was produced by using the bubbling fluidized bed biomass rapid pyrolysis device independently developed by the Biomass Energy Engineering Center of the School of Agriculture and Biology, Shanghai Jiao Tong University. This device has been published by Liu Ronghou et al. (Liu, R.H., Shen, C.J., Wu, H.J., etc. Characterization of bio-oil from fast pyrolysis of rice huskina fluidised bed reactor [J]. Journal of the Energy Institute, 2011, 84(2): 73-79.).

[0071] The first step, preparation of biomass raw materials: use rice husks, pass through sieves with different meshes, take the sifted rice husks, and dry them at 105±0.5°C for 48±0.05h; the sieved rice husks, grain The diameter is 70 mesh;

[0072] The second step, the production of bio-oil: use the bubbling fluidized bed bi...

Embodiment 3

[0080] This embodiment relates to a method for improving the stability of bio-oil by adding composite additives, said method comprising the steps of:

[0081] Using rice husk as raw material, the bio-oil was produced by using the bubbling fluidized bed biomass rapid pyrolysis device independently developed by the Biomass Energy Engineering Center of the School of Agriculture and Biology, Shanghai Jiao Tong University. This device has been published by Liu Ronghou et al. (Liu, R.H., Shen, C.J., Wu, H.J., etc. Characterization of bio-oil from fast pyrolysis of rice huskina fluidised bed reactor [J]. Journal of the Energy Institute, 2011, 84(2): 73-79.).

[0082] The first step, preparation of biomass raw materials: use rice husks, pass through sieves with different meshes, take the sifted rice husks, and dry them at 105±0.5°C for 48±0.05h; the sieved rice husks, grain The diameter is 80 mesh;

[0083] The second step, the production of bio-oil: use the bubbling fluidized bed bi...

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Abstract

The invention discloses a method for enhancing stability of biological oil by adding a composite additive, which comprises the following steps: 1. preparation of biomass raw material: screening pulverized rice hull, and drying; 2. preparation of biological oil: carrying out cracking reaction on the dried rice hull by using a bubbling fluidized bed biomass quick thermal cracking device; 3. screening the composite additive; and 4. adding the composite additive into the biological oil, uniformly mixing, and storing in a closed vessel. The composite additive added into the biological oil obviously enhances the stability of the biological oil; compared with the single additive, the composite additive can obviously lower the kinematic viscosity of the biological oil; the method does not need to perform complicated processing on the biological oil; and the method is low in operating cost and does not need expensive equipment or other rigid controlled conditions. The method can effectively enhance the stability of the biological oil and obviously lower the viscosity of the biological oil, so that the biological oil can be effectively stored at 25 DEG C for more than 90 days.

Description

technical field [0001] The invention relates to a method for significantly improving the stability of bio-oil, in particular to a method for improving the stability of bio-oil by adding composite additives. Background technique [0002] As a big energy consumer in the world, our country is facing the double pressure of huge resource and environment. According to the world's currently proven energy reserves, oil will be exhausted within 40 years, natural gas will be exhausted within 60 years, and coal resources can still be exploited for about 200 years. Research and practice have proved that in light of China's national conditions, the rational development of biomass energy and other renewable energy industries is not only a solution to the problem that my country's large amount of agricultural and forestry waste (crop straw, branches and leaves, wood chips) cannot be rationally processed in large quantities and the resulting resource and environmental problems. An effective...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/19C10L1/185C10L1/182C10L10/00
Inventor 刘荣厚张乐梅远飞
Owner SHANGHAI JIAO TONG UNIV
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