Treatment method of phenol-containing wastewater from power generation from rice husk pyrolysis
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A treatment method and technology for phenolic wastewater, applied in the treatment of dyed polymer organic compounds, fibrous fillers, etc., can solve the problems of restricting the development of biomass pyrolysis power generation and not causing it, and achieve the consistency of product performance, not easy to recycle, cost reduction effect
Inactive Publication Date: 2019-11-12
JILIN UNIV
View PDF4 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] So far, the phenolic wastewater produced by biomass pyrolysis has not attracted the attention of relevant departments, and has become a potential threat to restrict the development of biomass pyrolysis power generation industry
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0030] A method for treating phenolic waste water from rice husk pyrolysis for power generation, comprising the following steps:
[0031] Step 1, rice husk pyrolysis:
[0032] Select rice husks, screen and purify them, and add them to the pyrolysis tower through the bucket elevator, and then enter the drying zone, pyrolysis zone, deoxidizing and decoking zone, and cooling zone in sequence. Rice husk is decomposed into pyrolysis gas and pyrolysis carbon;
[0033] The prepared pyrolysis gas is led out from the side of the bottom of the pyrolysis furnace, enters the heat exchanger, prepares hot air, cools the pyrolysis gas to 300°C-350°C, and passes through the cyclone separator to separate the pyrolysis gas and the content of the pyrolysis gas Separation of pyrolytic carbon fine powder; pyrolysis gas is introduced into the purification tower to spray and wash with water to remove phenol-containing tar, and after cyclone water vapor separation, the purified pyrolysis gas is intr...
Embodiment 2
[0043] A method for treating phenolic wastewater from rice husk pyrolysis for power generation, comprising the following steps:
[0044] Step 1, rice husk pyrolysis:
[0045] Select rice husks, screen and purify them and add them to the pyrolysis tower through the bucket elevator, then enter the drying zone, pyrolysis zone, deoxidizing and decoking zone, and cooling zone in turn, keep the temperature in the pyrolysis section at 650°C, and pyrolyze for 0.5h. The rice husk is decomposed into pyrolysis gas and pyrolysis charcoal;
[0046] The prepared pyrolysis gas is led out from the side of the bottom of the pyrolysis furnace, enters the heat exchanger, prepares hot air, cools the pyrolysis gas to 300°C-350°C, and passes through the cyclone separator to separate the pyrolysis gas and the content of the pyrolysis gas Separation of pyrolytic carbon fine powder; pyrolysis gas is introduced into the purification tower to spray and wash with water to remove phenol-containing tar, a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention provides a treatment method of phenol-containing wastewater from power generation from rice husk pyrolysis, and belongs to the field of biomass energy chemical industry. The treatment method of the phenol-containing wastewater from power generation from rice husk pyrolysis comprises the following steps of (1) conducting rice husk pyrolysis to produce pyrolysis gas and pyrolysis carbon, subjecting the pyrolysis gas to spraying, washing and purifying to generate phenol-containing tar wastewater, and crushing the pyrolysis carbon through a crusher to produce 5-10-[mu]m silicon carbon black powder; (2) carrying out an acid-catalyzed reaction on the phenol-containing wastewater and formaldehyde to produce a biomass phenolic resin aqueous solution, and adding a cross-linking agentto promote polymerization of other tar; (3) modifying the silicon carbon black with resin; and (4) mixing modified silicon carbon black and rubber, conducting kneading and mixing through an internal mixer, and conducting extrusion and granulation to produce silicon carbon black / rubber master batch. By means of the proposed method, not only is the phenol-containing wastewater from power generationfrom rice husk pyrolysis treated, but also the silicon carbon black powder is modified, used as a reinforcing agent and applied into various rubber products, so that the proposed method is a rice huskresourceful and comprehensive utilization method with power generation by pyrolysis, production of the phenolic resin from the wastewater, modification of the silicon carbon black and production of the rubber master batch achieved.
Description
technical field [0001] The invention belongs to the field of biomass energy chemical industry, and in particular relates to a treatment method for phenol-containing waste water generated by pyrolysis of rice husk. Background technique [0002] Rice husk pyrolysis power generation has become a preferred project strongly supported by the national and local governments, and has been promoted and applied at home and abroad. However, a large amount of phenol-containing wastewater is produced during the pyrolysis gas purification process, and the phenol-containing wastewater volatilizes and spreads throughout the plant area, causing an unpleasant smell, endangering the health of employees and polluting the surrounding environment. Phenol-containing wastewater is a substance with extremely complex components, containing a large amount of phenolic substances, such as phenol, cresol, catechol guaiacol and pyrogallol, as well as a large number of other aromatics with unknown structure...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more