IP Library Granted Patent US 8,062,597
Granted Patent B2
US 8,062,597 · App. 12/309,125 · Granted Nov 22, 2011

Discoloration indicators for checking life span of desulfurization disorbent, and desulfurization reactor and desulfurization system comprising the same

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Quick Facts
Patent No.
US 8,062,597
App. No.
12/309,125
Granted
Nov 22, 2011
Kind
B2
Abstract

This invention relates to a discoloration indicator for checking the life span of a desulfurization adsorbent, and a desulfurization reactor and a desulfurization system including the same, and specifically, to a discoloration indicator for checking the life span of a desulfurization adsorbent able to effectively adsorb and remove organic sulfur compounds from fossil fuels, including natural gas or LPG containing the organic sulfur compound, and to a desulfurization reactor and a desulfurization system including the same. This invention makes it possible to remove the organic sulfur compound using the desulfurization adsorbent and to check the replacement time of the adsorbent with the naked eye or using an electrical signal, and thus may be applied to the treatment of natural gas or LPG requiring desulfurization, and also to hydrogen generators for home fuel cell generation systems or distributed fuel cell generation systems requiring that devices be simple, or requiring unmanned operation.

Claims (31)

1. A discoloration indicator for checking a replacement period of a desulfurization adsorbent, comprising a silica gel as a support, and a manganese compound, which is supported or applied on the support, and the manganese compound is supported or applied in an amount of 0.1 to 10 wt % based on an amount of the support.

2. A desulfurization reactor, comprising:

a closed container having a gas inlet and a gas outlet formed at respective ends thereof; and

a desulfurization adsorbent and the discoloration indicator of claim 1 , sequentially loaded from a direction of introduction of gas in the closed container.

3. The desulfurization reactor according to claim 2 , wherein a loading ratio of the desulfurization adsorbent to the discoloration indicator is 70˜80:20˜30.

4. A desulfurization system, comprising:

the desulfurization reactor of claim 3 ;

a discoloration sensor connected to the desulfurization reactor to sense discoloration of the discoloration indicator;

a signal amplifier for amplifying a signal of the discoloration sensor; and

a controlling/monitoring system for remotely controlling or monitoring desulfurization.

5. The desulfurization system according to claim 4 , wherein the desulfurization system is included in an operation system of a home fuel cell generation system or a distributed fuel cell generation system.

6. The desulfurization reactor according to claim 2 , further comprising a desulfurization adsorbent loaded on the discoloration indicator, a loading ratio of the discoloration indicator A to the discoloration indicator B being 7˜80:10˜20:10˜20.

7. A desulfurization system, comprising:

the desulfurization reactor of claim 6 ;

a discoloration sensor connected to the desulfurization reactor to sense discoloration of the discoloration indicator;

a signal amplifier for amplifying a signal of the discoloration sensor; and

a controlling/monitoring system for remotely controlling or monitoring desulfurization.

8. The desulfurization system according to claim 7 , wherein the desulfurization system is included in an operation system of a home fuel cell generation system or a distributed fuel cell generation system.

9. The desulfurization reactor according to claim 2 , wherein the desulfurization adsorbent is one selected from among activated carbon, impregnated activated carbon, or a mixture thereof.

10. A desulfurization system, comprising:

the desulfurization reactor of claim 9 ;

a discoloration sensor connected to the desulfurization reactor to sense discoloration of the discoloration indicator;

a signal amplifier for amplifying a signal of the discoloration sensor; and

a controlling/monitoring system for remotely controlling or monitoring desulfurization.

11. The desulfurization system according to claim 10 , wherein the desulfurization system is included in an operation system of a home fuel cell generation system or a distributed fuel cell generation system.

12. A desulfurization system, comprising:

the desulfurization reactor of claim 2 ;

a discoloration sensor connected to the desulfurization reactor to sense discoloration of the discoloration indicator;

a signal amplifier for amplifying a signal of the discoloration sensor; and

a controlling/monitoring system for remotely controlling or monitoring desulfurization.

13. The desulfurization system according to claim 12 , wherein the desulfurization system is included in an operation system of a home fuel cell generation system or a distributed fuel cell generation system.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT PATENT NUMBER 7448700 AND REPLACE IT WITH 7488700 PREVIOUSLY RECORDED ON REEL 026619 FRAME 0330. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Apr 11, 2016
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 038406/0201 →
CHANGE OF NAME Recorded Jul 14, 2011
From: SK ENERGY CO., LTD.
To: SK INNOVATION CO., LTD.
Reel/Frame 026619/0330 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2009
From: KIM, MYUNG JUN; YOON, YOUNG SEEK; KIM, JIN HONG
To: SK ENERGY CO., LTD.
Reel/Frame 022099/0195 →