Method for improving quality of bio-oil
A bio-oil and biomass technology, applied in the preparation of bio-fuel, liquid hydrocarbon mixture, waste fuel, etc., can solve the instability of bio-oil, increase the cost of bio-oil refining, and the ineffective utilization of furfural and its derivatives, etc. problems, to achieve the effect of improving the quality of bio-oil, easy separation, and reducing coking.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0027] Take 1 kg of sawdust, soak it with 1.5 kg of sulfuric acid solution with a concentration of 0.5 mol / L for 1 hour, and dry it at 120° C. for 4 hours to obtain the cracking raw material. The pyrolysis raw material is thermally cracked at 600° C. for 50 minutes to obtain bio-oil a. Take 100g of bio-oil a produced by cracking and add it into the autoclave. The pH of bio-oil a is 2.5, and the calorific value is 16.83 MJ / kg.
[0028]Add 40g of calcium oxide in the autoclave, and seal it with a lid. Replace the air in the autoclave with nitrogen for 6 times, and fill the autoclave with 1.0 MPa nitrogen. Put the autoclave in an oil bath, at 70°C, fully stir and react for 3 hours; continue to heat up to 170°C, fully stir and react for 1.5 hours; cool down to 110°C, continue to keep warm, fully stir and react for 1.5 hours. After the reaction is finished, the catalyst is recovered by filtration to obtain upgraded bio-oil b. The compositions of bio-oil a and upgraded bio-oil b ...
Embodiment 2
[0030] Get the bio-oil a of 100g embodiment 1 and join in the autoclave, and add 45g calcium oxide, add a cover and seal. Replace the air in the autoclave with nitrogen for 6 times, and fill the autoclave with 1.0 MPa nitrogen. Put the autoclave in an oil bath, fully stir and react at 60°C for 4 hours; continue to heat up to 180°C, stir and react for 1 hour; cool down to 90°C, continue to keep warm and stir for 1 hour. After the reaction is finished, the catalyst is recovered by filtration to obtain the upgraded bio-oil c. After GC-MS analysis, the c composition of the upgraded bio-oil is shown in Table 1. As can be seen from Table 1, after the treatment of the present invention, organic carboxylic acids and aldehydes and ketones are greatly reduced, and are all converted into furfuryl acetones and other condensation products. The addition of calcium oxide increases, and the amount of condensation products also increases. The pH of the upgraded bio-oil was 5.7, the heat valu...
Embodiment 3
[0039] Take 1 kg of sawdust, soak it in 2 kg of 0.5 mol / L sulfuric acid solution for 2 hours, and dry it at 100° C. for 6 hours to obtain cracking raw materials. The cracked raw material was cracked at 600° C. for 30 minutes to obtain bio-oil f. Take 100g of bio-oil f produced by pyrolysis and add it into the autoclave. The pH of bio-oil f is 2.7, and the calorific value is 17.26 MJ / kg. The composition is shown in Table 2.
[0040] Add 45g of calcium oxide in the autoclave, cover and seal. Replace the air in the autoclave with nitrogen for 6 times, and fill the autoclave with 1.0 MPa nitrogen. Put the autoclave in an oil bath, stir and react at 80°C for 2 hours; continue to heat up to 160°C, stir and react for 2 hours; cool down to 120°C, continue to keep warm and stir for 2 hours. After the reaction is finished, the catalyst is recovered by filtration to obtain the upgraded bio-oil g. After GC-MS analysis, the g composition of the upgraded bio-oil is shown in Table 2. It ...
PUM
Property | Measurement | Unit |
---|---|---|
heating value | aaaaa | aaaaa |
heating value | aaaaa | aaaaa |
heating value | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com