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Method for producing iron oxide desulphurizing agent in normal temperature

An iron oxide system and production method technology, applied in chemical instruments and methods, separation methods, chemical industry and other directions, can solve the problems of decreased desulfurization agent activity and poor desulfurization effect, and achieves enhanced mixing effect, reduced emissions, and shortened oxidation The effect of reaction time

Inactive Publication Date: 2008-07-16
湖北蓝焰生态能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] When the desulfurizer works for a certain period of time, the activity of the desulfurizer gradually decreases, and the desulfurization effect gradually deteriorates.

Method used

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  • Method for producing iron oxide desulphurizing agent in normal temperature

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A production method of normal temperature iron oxide series desulfurizer, it comprises the steps:

[0059] 1) The selection of raw materials: by mass percentage: ferrous sulfate heptahydrate (FeSO4 ·7H 2 (2) 10%, calcium carbonate 80%, metamanganic acid 10% choose ferrous sulfate heptahydrate, calcium carbonate and metamanganic acid, for subsequent use;

[0060] 2) Mixing: Mix calcium carbonate and metamanganic acid in a premixer for 20 minutes, drop into ferrous sulfate heptahydrate and continue mixing, and spray water in 5 minutes at the same time, the addition of water is ferrous sulfate heptahydrate, calcium carbonate and 2% of the quality of metamanganic acid to obtain mixture A;

[0061] 3) Solid-phase reaction: Add the mixture A from the solid material inlet of the solid-phase reactor into the conical barrel of the solid-phase reactor, react under the action of stirring and sufficient oxygen, and control the reaction time at 5 minutes to obtain mix B;

[0062]...

Embodiment 2

[0065] A production method of normal temperature iron oxide series desulfurizer, it comprises the steps:

[0066] 1) The selection of raw materials: by mass percentage: ferrous sulfate heptahydrate (FeSO 4 ·7H 2 (2) 50%, calcium carbonate 45%, metamanganic acid 5% choose ferrous sulfate heptahydrate, calcium carbonate and metamanganic acid, for subsequent use;

[0067] 2) Mixing: Mix calcium carbonate and metamanganic acid in the premixer for 25 minutes, drop into ferrous sulfate heptahydrate and continue mixing, and spray water into it in 15 minutes at the same time, the addition of water is ferrous sulfate heptahydrate, calcium carbonate and 5% of the quality of metamanganic acid, to get the mixture A;

[0068] 3) solid-phase reaction: the mixture A is added into the conical cylinder body of the solid-phase reactor from the solid material inlet of the solid-phase reactor, reacted under the action of stirring and sufficient oxygen, and the reaction time is controlled at 50 ...

Embodiment 3

[0072] A production method of normal temperature iron oxide series desulfurizer, it comprises the steps:

[0073] 1) The selection of raw materials: by mass percentage: ferrous sulfate heptahydrate (FeSO 4 ·7H 2 (2) 85%, calcium carbonate 5%, metamanganic acid 10% choose ferrous sulfate heptahydrate, calcium carbonate and metamanganic acid, for subsequent use;

[0074] 2) Mixing: Mix calcium carbonate and metamanganic acid in the premixer for 30 minutes, drop into ferrous sulfate heptahydrate and continue mixing, and spray water into it in 20 minutes at the same time, the addition of water is ferrous sulfate heptahydrate, calcium carbonate and 8% of the quality of metamanganic acid to obtain mixture A;

[0075] 3) Solid-phase reaction: Add the mixture A from the solid material inlet of the solid-phase reactor into the conical barrel of the solid-phase reactor, react under stirring and sufficient oxygen, and the reaction time is controlled at 1000min to obtain mix B;

[007...

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Abstract

The invention relates to a production method for a normal temperature iron oxide desulfurizer, which is characterized in that the production method comprises the steps that: 1) the selection of raw materials according to mass percentage is 10-85 percent of ferrous sulfate heptahydrate, 5-80 percent of insoluble carbonate and 0.5-40 percent of metamanganate according to weight percentage, and the ferrous sulfate heptahydrate, the insoluble carbonate and the metamanganate are prepared for spare; 2) mixing: the insoluble carbonate and the metamanganate are mixed for 20-30 minutes inside a premixer, in which the ferrous sulfate heptahydrate is then fed for continuous mixing; meanwhile, the water is sprayed into the premixer for 5-20 minutes, and the quantity added of the water is 2-40 percent of the weight of the ferrous sulfate heptahydrate, the insoluble carbonate and the metamanganate, thus obtaining a mixture A; 3) stationary phase reaction: the mixture A is added into a conical shell of a stationary phase reactor through a solid material feed inlet of the stationary phase reactor and is reacted through stirring and the action of adequate oxygen, thus obtaining a mixture B; 4) the normal temperature iron oxide desulfurizer is obtained through storing, prilling and drying. The method is characterized by environment protection, energy saving, low production cost, etc.; in addition, the desulfurizer has high purifying rate for removing sulfur.

Description

technical field [0001] The invention belongs to the field of clean utilization of rural renewable energy, and relates to a production method of a normal-temperature iron oxide-based desulfurizer. technical background [0002] The necessity of biogas desulfurization: Biogas is a common renewable energy source in rural areas. However, the clean utilization of rural biogas as a renewable energy has been perplexing the utilization and development of rural biogas in China. It is mainly manifested in the unpleasant odor of hydrogen sulfide gas in biogas, which is a highly toxic and harmful gas. Hydrogen sulfide has a strong corrosive effect on pipelines, burners and other combustion equipment, metering instruments, etc. in the air and under humid environmental conditions. After hydrogen sulfide is burned, sulfur dioxide (SO 2 ), when it meets water, it will generate sulfurous acid molecules, which will corrode metal equipment, pollute the environment, and directly endanger human...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/52C07C7/148
CPCY02P20/10
Inventor 陈金芳黎艳陈启明瞿锦霞高路叶青钱明
Owner 湖北蓝焰生态能源有限公司
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