Unlock instant, AI-driven research and patent intelligence for your innovation.
A chemical pretreatment method for organic waste gas containing styrene 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 of organic waste gas and styrene, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve problems such as hidden dangers, pipeline and device blockage safety, 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 order to solve the technical defects in the above-mentioned prior art, the present invention proposes a chemical pretreatment method for organic waste gas containing styrene components. Modification treatment, realizing low-temperature self-polymerization of styrene components at the inlet of the pipeline, so as to solve the problems of blockage and safety hazards caused by the polymerization of styrene to pipelines and devices
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, the 13X molecular sieve produced by the purchased commercialized Transung company is mixed with the phosphoric acidaqueous solution, extruded on the twin-screw extruder, and the concentration of the phosphoric acidaqueous solution used is 0.15mol / L;
[0033] The second step is to place the formed 13X molecular sieve to dry naturally at room temperature for 12 hours, and then place it in an oven and dry it at 120°C for 12 hours;
[0034] The third step, prepare a certain concentration of titanium chloride solution, the concentration is 0.35mol / L;
[0035] In the fourth step, the dried 13X molecular sieve is placed in the above titanium chloride solution, and electromagnetically stirred for 2 hours, taken out and calcined at 450° C. for 6 hours to obtain the modified 13X molecular sieve.
Embodiment 2
[0037] Specific steps include:
[0038] The first step, the 13X molecular sieve produced by the purchased commercial Transung company is mixed with the phosphoric acidaqueous solution, extruded on the twin-screw extruder, and the concentration of the phosphoric acid aqueous solution used is 0.30mol / L;
[0039] The second step is to place the formed 13X molecular sieve to dry naturally at room temperature for 12 hours, and then place it in an oven to dry at 150°C for 8 hours;
[0040] The third step, prepare a certain concentration of ferric chloride solution, the concentration is 0.40mol / L;
[0041] In the fourth step, the dried 13X molecular sieve is placed in the above titanium chloride solution, and electromagnetically stirred for 1 hour, taken out and calcined at 350° C. for 10 hours to obtain the modified 13X molecular sieve.
Embodiment 3
[0043] The first step, the 13X molecular sieve produced by the purchased commercial Transung company is mixed with the phosphoric acid aqueous solution, extruded on the twin-screw extruder, and the concentration of the phosphoric acid aqueous solution used is 0.7mol / L;
[0044] The second step is to place the formed 13X molecular sieve to dry naturally at room temperature for 12h, and then place it in an oven and dry it at 110°C for 6h;
[0045] The third step, prepare a certain concentration of zirconium chloride solution, the concentration is 0.45mol / L;
[0046] In the fourth step, the dried 13X molecular sieve is placed in the above-mentioned zirconium chloride solution, and electromagnetically stirred for 6 hours, taken out and calcined at 600° C. for 2 hours to obtain the modified 13X 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
Login to View More
Abstract
The invention discloses a chemical pretreatment method for organic waste gas containing styrene components, which belongs to the technical field of organic waste gas treatment, and solves the problem that waste gas of organic gas compounds containing styrene components easily occurs in pipelines and devices in the prior art The polymer generated by the polymerization reaction blocks the pipeline, and the temperature rise generated by the self-polymerization reaction has technical problems such as a relatively large safety hazard for the device. In the present invention, the 13X molecular sieve is modified by titaniumchloride, zirconiumchloride or ferricchloride, and then the modified 13X molecular sieve is loaded into a chemical pretreatment device to polymerize styrene in the organic waste gas. In the present invention, by selecting a modified 13X molecular sieve to treat styrene in organic waste gas, the self-polymerization reaction of styrene can be controlled in the polymerization reaction tank, so as to avoid the self-polymerization reaction of styrene in the pipeline or device and cause other Danger.
Description
technical field [0001] The invention relates to the technical field of treatment of organic waste gas, in particular to a chemical pretreatment method for organic waste gas containing styrene components. Background technique [0002] Styrene is an important intermediate product of the petroleum and petrochemical industry and an important part of the organic chemical industry. According to the output, the output of resin prepared from styrene as a raw material is second only to the output of ethylene series and vinyl chloride series, ranking second in synthetic resins. three. Styrene generates styrene after self-polymerization, which is used to prepare foamed plastic products, accounting for about two-thirds of its total demand. Macromolecular compounds such as saturated polyester. In 2010, the global demand reached 28 million tons, and it showed an increasing trend year by year. [0003] The main production process of styrene is ethylbenzenedehydrogenation. Due to the li...
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