Unlock instant, AI-driven research and patent intelligence for your innovation.

Catalyst for oxidative dehydrogenation and preparation method thereof

A technology of oxidative dehydrogenation and catalysts, which is applied in the direction of catalyst activation/preparation, carbon compound catalysts, metal/metal oxides/metal hydroxide catalysts, etc., can solve the problems of low pass-through rate, reduce waste water discharge, improve Through rate, the effect of a wide range of applications

Active Publication Date: 2020-10-30
LG CHEM LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the pass-through rate of metal oxide catalysts is small due to technical and space constraints, it is necessary to repeat the same process many times to obtain the required amount of catalysts.

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 for oxidative dehydrogenation and preparation method thereof
  • Catalyst for oxidative dehydrogenation and preparation method thereof
  • Catalyst for oxidative dehydrogenation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 6

[0074] In Examples 1 to 6, zinc was used as the divalent metal cation and the catalyst was prepared according to the high concentration synthesis method.

Embodiment 1

[0076] in step 1 , 18.029g of zinc chloride (ZnCl 2) and 71.495g of ferric chloride (FeCl 3 ) was dissolved in 233.39 g of distilled water, thereby preparing 322.914 g of an aqueous metal precursor solution of pH 1 (concentration of the precursor solution: 27.7% by weight). Here, the molar ratio of the metal component contained in the metal precursor aqueous solution is Fe:Zn=2:1.

[0077] in step 2 , 0.005% by weight of ammonia solution was added to 233.39 g of distilled water at room temperature (25° C.) in the coprecipitation tank to adjust the pH to 8. The coprecipitation tank was equipped with an outlet for the aqueous solution of the metal precursor and an outlet for the aqueous solution of ammonia. Export. While adding the prepared metal precursor aqueous solution dropwise at a rate of 2 g / min through the outlet of the aqueous metal precursor solution, an aqueous solution of ammonia (pH 13.6) with a concentration of 28% to 30% is provided at room temperature throu...

Embodiment 2

[0082] except in in step 2 A zinc ferrite catalyst was prepared in the same manner as in Example 1 except that the precursor solution was added at a dropping rate of 7 g / min.

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a catalyst for oxidative dehydrogenation and a preparation method thereof. More specifically, the present invention provides a catalyst for oxidative dehydrogenation capable of ensuring oxidative dehydrogenation reactivity while increasing the throughput rate, and a method for preparing the same.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims the benefit of priority to Korean Patent Application No. 10-2016-0036238 filed at the Korean Intellectual Property Office on March 25, 2016, the disclosure of which is incorporated herein by reference. [0003] The invention relates to a catalyst for oxidative dehydrogenation and a preparation method thereof. More specifically, the present invention relates to a catalyst for oxidative dehydrogenation capable of securing oxidative dehydrogenation reactivity and improving first pass yield and a method for preparing the same. Background technique [0004] Globally, the demand and value of 1,3-butadiene, an intermediate for petrochemical products, is gradually increasing. To produce such 1,3-butadiene, methods such as naphtha cracking, direct dehydrogenation of butene, and oxidative dehydrogenation of butene have been used. However, in the case of naphtha cracking, the energy loss...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B01J37/00B01J23/72B01J23/10B01J23/745B01J23/02B01J21/10B01J23/34B01J23/75B01J37/03B01J23/88
CPCB01J37/03B01J23/745B01J37/031B01J37/088B01J35/002B01J23/80B01J21/10B01J23/02B01J23/10B01J23/34B01J23/72B01J23/75B01J23/78B01J23/88B01J37/0018B01J37/00B01J23/06B01J37/009B01J37/0236B01J37/04B01J37/08C07C5/48C07C2523/80
Inventor 黄善焕高东铉车京龙崔大兴徐明志黄睿瑟韩俊奎金成旼姜铨汉李周弈南眩硕韩相真
Owner LG CHEM LTD