Unlock instant, AI-driven research and patent intelligence for your innovation.
A chemical treatment method for organic waste gas containing butadiene components
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 technology for chemical treatment and organic waste gas, used in chemical instruments and methods, separation methods, gas treatment, etc.
Active Publication Date: 2022-06-28
CHINA PETROLEUM & CHEM CORP +2
View PDF6 Cites 0 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
[0005] In view of the defects in the above-mentioned prior art, the present invention proposes a chemical treatment method and a chemical treatment process for organic waste gas containing butadiene components, which use nickel chloride, cobalt chloride, and titanium chloride to Molecular sieves are modified, after modification Molecular sieve can polymerize the butadiene component, so as to avoid problems such as blockage caused by the polymerization of butadiene in the device and its pipeline
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
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] Specific steps include:
[0032] The first step is to commercialize the purchase The molecular sieve is mixed with the citric acid aqueous solution, and extruded on a twin-screw extruder. The concentration of the citric acid aqueous solution used is 0.25 mol / L;
[0033] The second step is to mold the Molecular sieves were first air-dried at room temperature for 24 hours, and then placed in an oven at 140°C for 14 hours;
[0034] The third step, prepare a certain concentration of nickel chloride solution, the concentration is 0.25mol / L;
[0035] The fourth step is to dry the Molecular sieve was placed in the above solution, and electromagnetic stirring was used for 4 hours, then it was taken out to dry and calcined at 450 °C for 6 hours to obtain nickel chloride modification. Molecular Sieve.
Embodiment 2
[0037] Specific steps include:
[0038] The first step is to commercialize the purchase Molecular sieve is mixed with citric acid aqueous solution and extruded on a twin-screw extruder, and the concentration of phosphoric acid aqueous solution used is 0.12mol / L;
[0039] The second step is to mold the Molecular sieves were first dried at room temperature for 24 hours, and then dried in an oven at 120°C for 20 hours;
[0040] The third step, prepare a certain concentration of cobalt chloride solution, the concentration is 0.09mol / L;
[0041] The fourth step is to dry the The molecular sieve was placed in the above solution, and electromagnetically stirred for 4 hours, then taken out and dried at 320 °C for 11 hours to obtain the modification of cobalt chloride. Molecular Sieve.
Embodiment 3
[0043] Specific steps include:
[0044] The first step is to commercialize the purchase The molecular sieve is mixed with the aqueous citric acid solution, and extruded on a twin-screw extruder. The concentration of the phosphoric acid aqueous solution used is 0.45 mol / L;
[0045] The second step is to mold the Molecular sieves were first air-dried at room temperature for 24 hours, and then placed in an oven at 160°C for 8 hours;
[0046] The third step, prepare a certain concentration of titanium chloride solution, the concentration is 0.62mol / L;
[0047] The fourth step is to dry the The molecular sieve was placed in the above solution, and electromagnetic stirring was used for 3.5 hours, then it was taken out to dry and calcined at 600 °C for 2 hours to obtain the modification of titanium chloride. Molecular Sieve.
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
Property
Measurement
Unit
specific surface area
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a chemical treatment method for organic waste gas containing butadiene components, which belongs to the technical field of organic waste gas treatment, and solves the problem of organic waste gas containing a small amount of butadiene components in pipelines and devices in the prior art. A series of safety production problems caused by polymerization reaction. The method comprises: chemically treating the molecular sieve with nickel chloride, cobalt chloride or titanium chloride to obtain a modified molecular sieve, filling the modified molecular sieve in a butadiene polymerization reactor, and simultaneously passing the concentration of butadiene Analyzer 1 and gas flow meter 1 accurately measure the total amount entering the butadiene polymerization reactor. At the same time, at the outlet of the polymerization reactor, the pressure loss caused by the passage of the organic gas waste gas through the polymerization reactor is monitored by the butadiene concentration analyzer two and the gas flow meter two, and the removal of butadiene in the polymerization reactor is calculated efficiency. The invention can avoid problems such as blockage caused by the polymerization of butadiene in the device and its pipeline.
Description
technical field [0001] The invention relates to the technical field of organic waste gas treatment, in particular to a method for treating organic waste gas containing butadiene components. Background technique [0002] Butadiene, usually referred to as 1,3-butadiene, is one of the most important components in the C4 fraction, and is second only to ethylene and propylene in the raw materials of petrochemical olefins. Rubber (BR), styrene-butadiene rubber (SBR), nitrile-butadiene rubber (NBR), styrene-butadiene polymer latex, acrylonitrile-butadiene-styrene (ABS) resin, etc., are widely used organic polymerized monomer materials. At the end of 2010, my country's total production capacity of butadiene has reached 2.439 million tons / year, but still needs to import 215,700 tons. [0003] The main production process of butadiene is obtained by extraction from the mixed C4 fractions produced by the ethylene cracker, which is usually a mixed system of other C4 fractions such as ...
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