Thermal cracker, thermal cracking gas chromatograph and thermal cracking analysis method
A technology of gas chromatograph and gas chromatographic column, which is applied in the field of pyrolysis gas chromatograph and its pyrolysis analysis, can solve the problems of low temperature, slow heating rate, poor sample analysis reproducibility, etc., achieve fast analysis speed, eliminate Error, the effect of improving reproducibility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0065]Now industrial production of ethylene mostly uses heavy oil as raw material. After the heavy oil is cracked, not only ethylene, but also propylene, diolefins and aromatics with relatively large molecular weight are produced. Therefore, the evaluation of raw materials is of great significance in the industrial production of ethylene. The classic evaluation method is to measure the component ratio in the cracking product through pilot production, such as the ratio of paraffins, olefins, cyclic hydrocarbons, and aromatics. This method, although useful, is costly and time-consuming. The product cannot be analyzed by conventional gas chromatography because naphtha requires high temperatures to be completely cracked. Utilizing the pyrolysis gas chromatograph in the present invention can be very convenient for him to evaluate the raw materials.
[0066] like Figure 4 It is a pyrolysis spectrum of naphtha raw material for ethylene production. It can decompose each component of...
Embodiment 2
[0068] Comparative experiment: Instrument: GC-MS coupled instrument, capillary gas chromatography column 30m×0.32mm×0.25μm,
[0069] Reagents: polystyrene powder (to be tested), toluene, ethylbenzene, polystyrene standard sample.
[0070] Working conditions: carrier gas: nitrogen, flow rate: 2-4mL / min, prepare standard solutions of toluene, ethylbenzene, and styrene respectively, and use DMF as the standard solution.
[0071] Experimental method: the internal standard method is used to draw the standard brick experimental curve, and then the solution prepared with accurately weighed polyethylene powder is used for the same sample injection operation each time, and a parallel experiment is carried out, and then the analysis data results of each time are analyzed. Take measurements. The results showed that the RSD of the above 6 groups of data was less than 5.6%.
[0072] like Image 6 Shown are the analytical spectra drawn under the conditions: 1. Propylene, 2. Propane, 3. 1...
PUM
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