KR850001120A - 진한 황산 제조공정으로부터 열을 회수하는 방법 - Google Patents

진한 황산 제조공정으로부터 열을 회수하는 방법 Download PDF

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KR850001120A
KR850001120A KR1019840003828A KR840003828A KR850001120A KR 850001120 A KR850001120 A KR 850001120A KR 1019840003828 A KR1019840003828 A KR 1019840003828A KR 840003828 A KR840003828 A KR 840003828A KR 850001120 A KR850001120 A KR 850001120A
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South Korea
Prior art keywords
sulfuric acid
heat
alloy
recovery tower
heat recovery
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KR1019840003828A
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KR870000916B1 (ko
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레이 맥알리스터(외 1) 도날드
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아놀드 하베이 콜
몬산토 캄파니
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/80—Apparatus
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/765—Multi-stage SO3-conversion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

내용 없음

Description

진한 황산 제조공정으로부터 열을 회수하는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 장치를 포함하는 황산플랜트의 공정도.
제3도는 본 발명의 장치와 공정에 관한 다이아그램.
제4도는 종래 중간흡수탑의 운전사이클에 대한 열회수탑의 운전사이클을 나타내는 그래프이다.

Claims (16)

  1. 삼산화황을 온도 120℃, 농도 98% 이상 101% 이하의 황산에 흡수시키고, 열교환기에서 황산의 흡수열을 다른 유체에 의하여 유용한 형태로 제거함을 특징으로 하는 황산 제조공정에서의 열을 회수하는 방법.
  2. 제1항에 있어서, 황산의 농도는 99% 이상인 것.
  3. 제1항에 있어서, 황산의 농도는 101% 이하인 것.
  4. 열회수탑에서 온도 120℃ 이상, 농도 98% 이상 101% 이하의 황산에 삼산화황을 흡수시키고, 흡수열에 의해 온도가 상승한 황산 스트리임을 고온의 진한황산과의 접촉에도 낮은 부식율을 가지는 합금으로 세워진 열교환기에 통과시켜 열교환기내에서 다른 유체에 의하여 유용한 형태로 황산에 흡수된 열을 제거하는 것을 특징으로 하는 황산 제조공정에서의 열에너지 회수방법.
  5. 제4항에 있어서, 황산은 열교환기에서 열회수탑으로 재순환된다는 것.
  6. 제5항에 있어서, 황산은 재순환되는 동안 98% 이상 99% 이하의 농도로 희석한다는 것.
  7. 제6항에 있어서, 재순환되는 황산은 묽은 황산이나 액체 또는 증기상태인 물을 첨가하여 희석한다는 것.
  8. 제6항에 있어서, 재순환되는 황산은 증기상태인 물을 첨가하여 희석한다는 것.
  9. 하부유입구로는 삼산화황을 포함하는 가스스트리임을, 상부유입구로는 98% 이상 101% 이하의 농도와 120℃의 온도를 가지는 황산스트리임을 열회수탑에서 삼산화황을 황산에 발열반응을 수반하면서 흡수시키고, 삼산화황이 흡수된 가스스트리임은 상부유출구로, 황산은 하부유출구로 빠져나갈 수 있도록 상부와 하부에 각각의 유입구와 유출구를 가지는 열회수탑과, 다른 유체와 열교환을 통하여 유용한 형태로 황산으로부터 흡수열을 회수하기 위하여 고온의 진한 황산과 접촉하여도 부식율이 낮은 합금으로 제조된 열교환기로 구성된 황산제조공정에서의 열에너지 회수장치.
  10. 제9항에 있어서, 열회수탑은 세라믹재로 피복된 탄소강으로 제조된 것이라는 것.
  11. 제9항에 있어서, 열회수탑은 고온의 진한황산과 접촉하여도 부식율이 낮은 합금들로 제조된 것이라는 것.
  12. 제11항에 있어서, 열회수탑은 주합금성분이 다음의 관계를 만족하는 합금들로 제조된다는 것 :
    0.35(Fe+Mn)+0.70(Cr)+0.30(Ni)-0.12(Mo)>39
    여기에서, Fe은 합금중 철의 wt%, Mn은 합금중 망간의 wt%, Cr은 합금중 크롬의 wt%, Ni은 합금중 닉켈의 wt%이고 Mo은 합금중 몰리브덴의 wt%이다.
  13. 제9항에 있어서, 열교환기는 주합금성분이 다음의 관계를 만족하는 합금들로 제조된다는 것.
    0.35(Fe+Mn)+0.70(Cr)+0.30(Ni)-0.12(Mo)>39
    여기에서, Fe은 합금중 철의 wt%, Mn은 합금중 망간의 wt%, Cr은 합금중 크롬의 wt%, Ni은 합금중 닉켈의 wt%이고, Mo은 합금중 몰리브덴의 wt%이다.
  14. 제9항에 있어서, 열교환기는 열회수탑의 외부에 설치한다는 것.
  15. 제9항에 있어서, 열교환기는 열회수탑의 내부에 설회한는 것.
  16. 약 1000kpa의 압력하에서는 삼산화황을 98% 이상 105% 이하의 농도와 120℃ 이상의 온도를 갖는 황산에 흡수시켜, 삼산화황의 흡수에 의해 흡수된 열을 다른 유체와의 열교환에 의해서 황산으로부터 유용한 형태로 회수함을 특징으로 하는 황산 제조공정에서의 열을 회수하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840003828A 1983-07-05 1984-07-03 진한 황산 제조공정으로 부터 열을 회수하는 방법 KR870000916B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US510527 1983-07-05
US06/510,527 US4576813A (en) 1983-07-05 1983-07-05 Heat recovery from concentrated sulfuric acid

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KR850001120A true KR850001120A (ko) 1985-03-16
KR870000916B1 KR870000916B1 (ko) 1987-05-07

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Country Link
US (1) US4576813A (ko)
EP (1) EP0130967B2 (ko)
JP (1) JPS6036310A (ko)
KR (1) KR870000916B1 (ko)
AU (1) AU564505B2 (ko)
BR (1) BR8403294A (ko)
CA (1) CA1256671A (ko)
DE (1) DE3468857D1 (ko)
DZ (1) DZ713A1 (ko)
ES (2) ES8601066A1 (ko)
FI (1) FI77634C (ko)
IN (1) IN161448B (ko)
MA (1) MA20164A1 (ko)
MX (1) MX164158B (ko)
NZ (1) NZ208754A (ko)
TR (1) TR21894A (ko)
YU (1) YU45188B (ko)
ZA (1) ZA845086B (ko)

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Also Published As

Publication number Publication date
IN161448B (ko) 1987-12-05
ES533910A0 (es) 1985-10-16
NZ208754A (en) 1987-10-30
CA1256671A (en) 1989-07-04
YU45188B (en) 1992-05-28
FI842672A (fi) 1985-01-06
JPH0459243B2 (ko) 1992-09-21
ES543604A0 (es) 1986-01-16
MX164158B (es) 1992-07-20
MA20164A1 (fr) 1985-04-01
BR8403294A (pt) 1985-06-18
ZA845086B (en) 1985-03-27
DE3468857D1 (en) 1988-02-25
FI77634C (fi) 1989-04-10
KR870000916B1 (ko) 1987-05-07
US4576813A (en) 1986-03-18
TR21894A (tr) 1985-10-07
ES8601066A1 (es) 1985-10-16
YU116284A (en) 1987-10-31
ES8604032A1 (es) 1986-01-16
AU3023384A (en) 1985-01-10
DZ713A1 (fr) 2004-09-13
EP0130967B2 (en) 1995-05-03
FI842672A0 (fi) 1984-07-03
AU564505B2 (en) 1987-08-13
EP0130967B1 (en) 1988-01-20
EP0130967A1 (en) 1985-01-09
JPS6036310A (ja) 1985-02-25
FI77634B (fi) 1988-12-30

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