JPS54151590A - Coal saver for contact process sulfuric acid manufacturing apparatus - Google Patents

Coal saver for contact process sulfuric acid manufacturing apparatus

Info

Publication number
JPS54151590A
JPS54151590A JP6145278A JP6145278A JPS54151590A JP S54151590 A JPS54151590 A JP S54151590A JP 6145278 A JP6145278 A JP 6145278A JP 6145278 A JP6145278 A JP 6145278A JP S54151590 A JPS54151590 A JP S54151590A
Authority
JP
Japan
Prior art keywords
supply water
sulfuric acid
boiler supply
heat
temperature
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.)
Pending
Application number
JP6145278A
Other languages
Japanese (ja)
Inventor
Kazuo Aoki
Tetsushi Kuze
Masaki Yamada
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen 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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP6145278A priority Critical patent/JPS54151590A/en
Publication of JPS54151590A publication Critical patent/JPS54151590A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Air Supply (AREA)

Abstract

PURPOSE: To enhance the recovery rate of waste heat as well as prevent the corrosion of heat- transmitting tube by heating in advance the water to be supplied to heat-transmitting tube inside coal saver by a preheater to a temperature more than the dew point temperature of sulfuric acid.
CONSTITUTION: The SO2-containing gas 1 flows downwards from the upper inlet of the coal saver body 2 and then goes out of the outlet of the lower side, and on the other hand, the boiler supply water 4 sent through the boiler supply water pump 3 is heated by the preheater 5 for boiler supply water, for example, and then supplied to the lower inlet (d) for boiler supply water of the heat-transmitting tube 6, where the water is gradually heated by the gas 1 while ascending and then goes out of the upper outlet (e) for boiler supply water to enter into the steam drum 7. Thus, the surface temperature of the heat-transmitting tube 6 near the gas outlet becomes higher than the dew point temperature of sulfuric acid all the time and the corrosion of the tube can therefore be prevented because the boiler supply water 4 is heated in advance to a temperature more than the dew point temperature of sulfuric acid, and also the recovery rate of waste heat can be raised because the gas temperature at the outlet of coal saver can be lowered to 170 to 190°C.
COPYRIGHT: (C)1979,JPO&Japio
JP6145278A 1978-05-22 1978-05-22 Coal saver for contact process sulfuric acid manufacturing apparatus Pending JPS54151590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6145278A JPS54151590A (en) 1978-05-22 1978-05-22 Coal saver for contact process sulfuric acid manufacturing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6145278A JPS54151590A (en) 1978-05-22 1978-05-22 Coal saver for contact process sulfuric acid manufacturing apparatus

Publications (1)

Publication Number Publication Date
JPS54151590A true JPS54151590A (en) 1979-11-28

Family

ID=13171441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6145278A Pending JPS54151590A (en) 1978-05-22 1978-05-22 Coal saver for contact process sulfuric acid manufacturing apparatus

Country Status (1)

Country Link
JP (1) JPS54151590A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470449A (en) * 1982-04-02 1984-09-11 Monsanto Company Economizer arrangement
US4478809A (en) * 1983-01-20 1984-10-23 Monsanto Company Economizer arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470449A (en) * 1982-04-02 1984-09-11 Monsanto Company Economizer arrangement
US4478809A (en) * 1983-01-20 1984-10-23 Monsanto Company Economizer arrangement

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