Catalyst system for oxidative dehydrogenation, reactor for oxidative dehydrogenation including catalyst system, and method of performing oxidative dehydrogenation using reactor

a catalyst system and catalyst technology, applied in the direction of physical/chemical process catalysts, metal/metal-oxide/metal-hydroxide catalysts, hydrocarbon preparation catalysts, etc., can solve the problems of reducing reaction efficiency, reducing catalyst life, and method being unsatisfactory in terms of productivity and yield, so as to reduce catalyst deterioration, reduce catalyst deterioration, and reduce the effect of heat generation

Active Publication Date: 2019-07-04
LG CHEM LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present in this patented technology allows for efficient use of oxygen gas (O2) by controllably increasing the amount of certain chemicals contained within the reaction vessel while feeding them continuously through different locations at specific times throughout the process. This helps prevent damage caused by excessive temperature buildup on the equipment' components such as pipes and valves. Additionally, the design prevents overloading any other parts of the plant due to uneven cooling conditions when there may occur sudden changes like shutdowns or maintenance work being done. Overall, these technical improvements help increase efficiency, product quality, and lifespan of the production facility involved in producing hydrocarbons.

Problems solved by technology

The technical problem addressed in this patents relates to improving the production process of 1 , 3-Butadienes (Bs) from n-hexane through oxidive dehyde hydrogenerations without causing thermal instability or decreased yields due to overvoltage caused by increased levels of impurities such as nitrous acid produced when producing BS resins.

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
  • Catalyst system for oxidative dehydrogenation, reactor for oxidative dehydrogenation including catalyst system, and method of performing oxidative dehydrogenation using reactor
  • Catalyst system for oxidative dehydrogenation, reactor for oxidative dehydrogenation including catalyst system, and method of performing oxidative dehydrogenation using reactor

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0064]The catalyst composition was loaded into a reactor in an incremental manner in a three-stage structure as shown in Table 2 below. Then, reaction was performed under the same conditions and in the same manner as in Example 1, except that the reaction was performed at the temperature specified in Table 2 below.

TABLE 2GHSV / mole ratio of butene:oxygen:steam:nitrogen =120 / 1:1:5:4, 360° C.X [content ofY [content of porousZnFe2O4, wt %]support, wt %]First stage694Second stage991Third stage1486[0065]In Table 2, each of X and Y is based on 100% by weight of the total amount thereof.

example 3

[0066]Reaction was performed under the same conditions and in the same manner as in Example 2, except that the molar ratio of butene:oxygen:steam:nitrogen was 1:1.2:5:4.

example 4

[0067]The catalyst composition was loaded into a reactor in an incremental manner in a three-stage structure as shown in Table 3 below. Then, reaction was performed under the same conditions and in the same manner as in Example 1, except that a reaction temperature was 347° C.

TABLE 3GHSV / mole ratio of butene:oxygen:steam:nitrogen =120 / 1:1:5:4, 347° C.X [content ofY [content of porousZnFe2O4, wt %]support, wt %]First stage991Second stage1486Third stage2773[0068]In Table 3, each of X and Y is based on 100% by weight of the total amount thereof.

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

PropertyMeasurementUnit
Temperatureaaaaaaaaaa
Pore sizeaaaaaaaaaa
Densityaaaaaaaaaa
Login to view more

Abstract

Provided is a catalyst system for oxidative dehydrogenation, a reactor for oxidative dehydrogenation including the catalyst system, and a method of performing oxidative dehydrogenation using the reactor. In the catalyst system, a fixed-bed reactor is filled with a catalyst for oxidative dehydrogenation in an n-stage structure (n being an integer of 2 or more), wherein each stage of the n-stage structure satisfies Equations 1 and 2 as claimed so that the concentration of an active ingredient included in the catalyst gradually increases in the direction in which reactants are fed into the reactor. Heat generated inside the reactor may be effectively controlled during oxidative dehydrogenation, thereby improving conversion rate, selectivity, and yield. In addition, catalyst deterioration may be reduced, thereby improving long-term stability of the catalyst.

Description

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

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
no application Login to view more
Owner LG CHEM LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap