Ethylbenzene Dehydrogenation to Styrene Upgrade

Yesterday, it was learned from the Institute of Metal Research, Chinese Academy of Sciences that the Institute of Catalysis Materials of the National (Joint) Laboratory of Materials Science of Shenyang Institute of Materials Science and Technology, etc., rely on highly curved oxygen-doped graphene active structures on the surface of nanodiamonds, in the absence of oxygen, without The direct dehydrogenation of ethylbenzene to obtain styrene was realized under the protection of water vapor at low temperature, and its catalytic activity was about three times that of industrial iron oxide catalyst.
This achievement will have a good application prospect in the ethylbenzene dehydrogenation industry. For the first time, researchers have used non-metal materials to catalyze direct dehydrogenation reactions. Advanced in-situ characterization techniques have made important breakthroughs in non-metallic catalytic reaction mechanisms, active-site structures, and reaction intermediates, and other key scientific issues for non-metallic catalysts. The in-depth development and technical upgrading of ethylbenzene dehydrogenation in traditional industries provide important references.
According to reports, carbon deposition has been a key issue for the alkane conversion industry. Traditional catalysts use metals and their oxides as active components. Alkane molecules of the reactants inevitably form carbon deposits at the same time, which ultimately results in loss of catalyst activity. The traditional solution is to add additives such as alkali metals and rare earth oxides to delay the deactivation process properly, or to introduce a large amount of water vapor to perform in-situ carbon removal to protect the active center. There is an urgent need to develop a new generation of energy-efficient, clean and highly efficient paraffin removal. Hydrogen catalytic material.
In cooperation with the Fritz Haber Institute of Germany, Changchun Institute of Chemistry of the Chinese Academy of Sciences and the Croatian researchers, the Department of Catalytic Materials of the State (Joint) Laboratory of Materials Science in Shenyang discovered that the carbon atoms on the surface of nanodiamonds undergo partial graphitization under the action of large surface curvature. A unique "diamond-graphene" core-shell nanostructure was formed. They examined the activity and stability of nanodiamonds and typical industrial iron oxide catalysts under the direct dehydrogenation reaction conditions without water vapor protection. The results showed that after 5 hours from the start of the reaction, the conversion rate on the iron oxide catalyst rapidly decreased from 20.2% to 7.1%, while the conversion rate on the nanodiamond was higher than 20.5% in 120 hours and the styrene selectivity was as high as 97.3%. After the reaction, serious carbon deposition occurred on the iron oxide, but the surface structure of the nano diamond did not change significantly.

The rack roll forming machine includes one decoiler, servo feeder, hydraulic punching, roll forming and hydraulic cutting. The products of the rack roll forming machine are used as racks and shelves for supporting the daily commodities in supermarkets and shops.

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2.Elegant appearance

3.PLC control, full automatic

4.Manufacture as buyer's requirements

Specifications:

Raw material	Colored steel, Galvanized steel
Material thickness range	1.5-3.0mm
Rollers	18-24 rowa(according to drawings and size)
Material of rollers	45# steel with chromed
Shaft diameter and material	80mm, material is 40Cr
Material of cutting blade	Cr12 mould steel with quenched treatment
Forming speed	6-8m/min(include the punching)
Way of driven	Chain transmission or Gear box
Controlling system	Siemens PLC
Main motor power	15KW
Hydraulic station power	11KW
Voltage	380V/3Phase/50Hz or at buyer's request
Size of the machine	L*W*H 12m*2.0m*1.6m

Working process:

Decoiler - Seven rollers leveling - Servo feeding - Power press - Material guiding - Main roll forming machine 

- PLC control system - Hydraulic cutting (45°) - Receiving table

Pictures for machine:

Training and Installation :
1. We offer installation service local in paid, reasonable charge. 
2. QT test is welcome and professional.
3. manual and using guide is optional if no visiting and no installation. 

Certification and after service:
1. Match the technology standard, ISO producing certification 
2. CE certification 
3. 12 months warranty since the delivery. Board. 

Our advantage:
1. Short delivery period. 
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3. Interface customized. 

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