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Natural mineral-based catalyst and gasification method using the same

A technology of natural minerals and catalysts, applied in the field of fluidized bed gasification, to achieve the effect of easy separation and recovery, and improved gasification activity

Active Publication Date: 2018-11-16
SK INNOVATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned above, in the case of using an alkali metal salt as a catalyst, the gasification reaction needs to be performed at a low temperature, thus reducing CO 2 There is a limitation in discharge volume

Method used

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  • Natural mineral-based catalyst and gasification method using the same
  • Natural mineral-based catalyst and gasification method using the same
  • Natural mineral-based catalyst and gasification method using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Manufacture of catalyst using natural zeolite (1)

[0132] As an aqueous Fe precursor solution, FeCl 2 4H 2 Fe of O (Sanden Pure Chemical Industries, Ltd. Iron (II) chloride tetrahydrate, 99%), and as the Mg precursor aqueous solution, prepared MgCl 2 ·6H 2 Mg of O (Magnesium chloride hexahydrate from Sanden Junyaku Co., Ltd., 98%).

[0133] Thereafter, as described above, 100 g of natural zeolite particles heat-treated at 350° C. were put into a 1-liter beaker, and then 125 g of the Fe precursor aqueous solution and 94 g of the Mg precursor aqueous solution were added thereto. The mixture was stirred at 75°C for 6 hours, filtered, and the filtrate was dried at 105°C, and then calcined in an air atmosphere at a temperature of 900°C to produce a gasification catalyst.

[0134] The composition of the catalyst was analyzed by ICP-OES (720ICP-OES from Agilent Technologies), and it was confirmed that it contained 20.5% by weight of MgO and 27.0% by weight of Fe 2 o 3...

Embodiment 2

[0136] Production of catalysts using dolomite

[0137] As an aqueous Fe precursor solution, FeCl 2 4H 2 Fe of O (Sanden Pure Chemical Industries, Ltd. Iron (II) chloride tetrahydrate, 99%), and KCl K (Sanden Pure Chemical Industries, Ltd. Potassium chloride, 99.5%).

[0138] Thereafter, 100 g of the calcined dolomite particles were put into a 1 L beaker, and then 125 g of the Fe precursor aqueous solution and 74 g of the K precursor aqueous solution were added thereto. The above-mentioned mixture was stirred at 75°C for 6 hours, filtered, and the obtained solid was dried at 105°C, and then calcined in an air atmosphere at a temperature of 950°C to produce a catalyst.

[0139] The composition of the catalyst was analyzed by ICP-OES (720ICP-OES from Agilent Technologies), and it was confirmed that it contained 24.0% by weight of MgO and 27.5% by weight of Fe 2 o 3 and 10.5% by weight of K 2 O.

Embodiment 3

[0141] Production of catalysts using eluate of natural zeolite and olivine

[0142] 100 g of the above-produced olivine particles were put into a 1 L beaker, 400 ml of 5N hydrochloric acid was added thereto, stirred at 90° C. for 3 hours, and the acid-treated mixture was filtered to separate and recover the eluate.

[0143] The contents of elements (ions) extracted from the recovered eluate sample (5 ml) are shown in Table 7 below.

[0144] 【Table 7】

[0145] element (ion)

Mg

Ca

Fe

Al

Si

Content (wt%)

0.60

0.01

0.21

0.03

0.51

[0146] 100 g of the natural zeolite particles produced above were put into a 1 L beaker, and then 200 ml of the eluate was added. Thereafter, the mixture was stirred at 75° C. for 6 hours, filtered, and the obtained solid matter was dried at 105° C., and then calcined in an air atmosphere at a temperature of 900° C. to produce a catalyst.

[0147] The composition of the catalyst was analyzed by...

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Abstract

Embodiments of the present invention provide a gasification catalyst that supports an active ingredient based on a natural mineral to have a specific composition range, and by applying the catalyst to a fluidized bed gasification reactor, not only the gasification activity is improved but also the catalyst is easily separated and recovered gasification method.

Description

technical field [0001] The present invention relates to a catalyst based on natural minerals and a gasification method using the catalyst. More specifically, the present invention relates to a gasification catalyst supporting an active ingredient based on a natural mineral to have a specific composition range and a fluidized bed gasification method using the catalyst. Background technique [0002] Recently, with the depletion of petroleum resources, there is a need for a method of producing high value-added chemical products by effectively utilizing coal, especially low-grade carbon, and for this reason, a representative gasification process has attracted attention. [0003] Generally, the gasification process refers to reacting carbonaceous raw materials such as coal and biomass under the condition of supplying a gasification agent (for example, oxygen, steam, carbon dioxide, or their mixture), thereby converting them into A range of processes for forming gases consisting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/78C10J3/54
CPCY02P20/52
Inventor 沈显愍金容祐权泰玩金龙铨
Owner SK INNOVATION CO LTD
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