JPS57155307A - Desulfurization in reduction of iron ore in heat medium particle-circulated fluidized bed - Google Patents

Desulfurization in reduction of iron ore in heat medium particle-circulated fluidized bed

Info

Publication number
JPS57155307A
JPS57155307A JP4202681A JP4202681A JPS57155307A JP S57155307 A JPS57155307 A JP S57155307A JP 4202681 A JP4202681 A JP 4202681A JP 4202681 A JP4202681 A JP 4202681A JP S57155307 A JPS57155307 A JP S57155307A
Authority
JP
Japan
Prior art keywords
tower
reduction
fluidized bed
heat medium
carbonaceous material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4202681A
Other languages
Japanese (ja)
Other versions
JPS59565B2 (en
Inventor
Hisamitsu Koitabashi
Hisao Hamada
Toshihiro Inatani
Kyoji Okabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP4202681A priority Critical patent/JPS59565B2/en
Publication of JPS57155307A publication Critical patent/JPS57155307A/en
Publication of JPS59565B2 publication Critical patent/JPS59565B2/en
Expired legal-status Critical Current

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  • Manufacture Of Iron (AREA)

Abstract

PURPOSE: To suppress the migration of sulfur into reduced iron to a minimum by charging effectively a solid desulfurizer into at least one of a reduction tower and a combustion tower in the reduction of iron ores in a heat medium-circulated fluidized bed.
CONSTITUTION: A carbonaceous material 6a as a heat medium particle heated in a combustion tower 2 is moved to a reduction tower 1 through a pipe 3, where it gives a heat necessary for the reduction of iron ores supplied in the apparatus 4 and returns to the tower 2 through a pipe 15 and a cyclone 11. The carbonaceous material 6a, e.g., coal, etc., supplied in the apparatus 6 is burned with O2 or air blown from a nozzle 8, and heavy oil and coal blown from the nozzle into the tower 1 are gasified to reduce the iron ores. Most of waste gas from the towers 1 and 2 is again supplied through a carbonic acid remover 14. C and S present in the carbonaceous material 6a are converted into combustion gases and also gasified S is generated even in the tower 1 when the carbonaceous matieral 6a is moved. Thus, a solid reducing agent, e.g., lime stone, etc., is charged into at least one of the towers 1 and 2. The particle size of the solid reducing agent is almost the same as that of packings. By this, the classifying phenomenon of particles in the fluidized bed can be prevented and the mixing effect of the fluidized bed can be raised.
COPYRIGHT: (C)1982,JPO&Japio
JP4202681A 1981-03-23 1981-03-23 Desulfurization method for iron ore reduction using heat transfer particle circulating fluidized bed Expired JPS59565B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4202681A JPS59565B2 (en) 1981-03-23 1981-03-23 Desulfurization method for iron ore reduction using heat transfer particle circulating fluidized bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4202681A JPS59565B2 (en) 1981-03-23 1981-03-23 Desulfurization method for iron ore reduction using heat transfer particle circulating fluidized bed

Publications (2)

Publication Number Publication Date
JPS57155307A true JPS57155307A (en) 1982-09-25
JPS59565B2 JPS59565B2 (en) 1984-01-07

Family

ID=12624653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4202681A Expired JPS59565B2 (en) 1981-03-23 1981-03-23 Desulfurization method for iron ore reduction using heat transfer particle circulating fluidized bed

Country Status (1)

Country Link
JP (1) JPS59565B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20080632A1 (en) * 2008-11-27 2010-05-27 Shap Corp S R L INTEGRATED GASIFICATION / COMBUSTOR PLANT WITH FLUID BED
EP3170790A4 (en) * 2014-07-17 2017-09-27 Shandong Dazhan Nanomaterials Co., Ltd. Apparatus and method for continuous preparation of carbon nanotubes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20080632A1 (en) * 2008-11-27 2010-05-27 Shap Corp S R L INTEGRATED GASIFICATION / COMBUSTOR PLANT WITH FLUID BED
EP3170790A4 (en) * 2014-07-17 2017-09-27 Shandong Dazhan Nanomaterials Co., Ltd. Apparatus and method for continuous preparation of carbon nanotubes
US10500594B2 (en) 2014-07-17 2019-12-10 Shandong Dazhan Nano Materials Co., Ltd Apparatus and method for continuous preparation of carbon nanotubes

Also Published As

Publication number Publication date
JPS59565B2 (en) 1984-01-07

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