RU98110635A - METHOD FOR ENRICHING OXYGEN OXYGEN - Google Patents

METHOD FOR ENRICHING OXYGEN OXYGEN

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Publication number
RU98110635A
RU98110635A RU98110635/02A RU98110635A RU98110635A RU 98110635 A RU98110635 A RU 98110635A RU 98110635/02 A RU98110635/02 A RU 98110635/02A RU 98110635 A RU98110635 A RU 98110635A RU 98110635 A RU98110635 A RU 98110635A
Authority
RU
Russia
Prior art keywords
stream
gas
oxygen
inlet
enriched
Prior art date
Application number
RU98110635/02A
Other languages
Russian (ru)
Other versions
RU2205227C2 (en
Inventor
Прасад Рави
Фрэнсис Дрневич Раймонд
Фэй Хомер
Original Assignee
Праксайр Текнолоджи, Инк.
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
Priority claimed from US08/868,964 external-priority patent/US5855648A/en
Application filed by Праксайр Текнолоджи, Инк. filed Critical Праксайр Текнолоджи, Инк.
Publication of RU98110635A publication Critical patent/RU98110635A/en
Application granted granted Critical
Publication of RU2205227C2 publication Critical patent/RU2205227C2/en

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Claims (10)

1. Способ обогащения кислородом входного газа в первом потоке содержащего элементарный кислород, и, по меньшей мере, один другой газ, который должен вводиться в печь, путем использования потока чистого газообразного кислорода или потока обогащенного кислородом газа, полученного из второго потока входного газа, содержащего элементарный кислород, и, по меньшей мере, один другой газ, отличающийся тем, что осуществляют сжатие первого потока входного газа; разделение второго потока входного газа, используя модуль с переносом ионов, содержащий мембрану с переносом ионов, имеющую входную сторону и выходную сторону, для получения потока обедненного кислородом газа на входной стороне и потока чистого газообразного кислорода или потока газа, обогащенного кислородом, на выходной стороне; нагрев, по меньшей мере, первого потока входного газа перед введением в печь; и добавление потока чистого газообразного кислорода или потока газа, обогащенного кислородом, в первый поток входного газа в любом положении перед тем, как первый поток входного газа вводят в печь.1. A method for oxygen enrichment of an inlet gas in a first stream containing elemental oxygen and at least one other gas to be introduced into the furnace by using a stream of pure oxygen gas or an oxygen-enriched gas stream obtained from a second inlet gas stream containing elemental oxygen, and at least one other gas, characterized in that they compress the first inlet gas stream; separating the second inlet gas stream using an ion transport module comprising an ion transport membrane having an inlet side and an outlet side to obtain an oxygen depleted gas stream at the inlet side and a pure oxygen gas stream or an oxygen enriched gas stream at the outlet side; heating at least a first inlet gas stream before being introduced into the furnace; and adding a stream of pure gaseous oxygen or a stream of oxygen-enriched gas to the first inlet gas stream at any position before the first inlet gas stream is introduced into the furnace. 2. Способ по п. 1, отличающийся тем, что печь представляет собой доменную печь. 2. The method according to p. 1, characterized in that the furnace is a blast furnace. 3. Способ по п. 1, отличающийся тем, что второй поток входного газа содержит, по меньшей мере, часть первого потока сжатого входного газа, или потока обогащенного кислородом сжатого второго газа. 3. The method according to p. 1, characterized in that the second stream of the inlet gas contains at least a portion of the first stream of compressed inlet gas, or a stream of oxygen-enriched compressed second gas. 4. Способ по п. 1, отличающийся тем, что по меньшей мере, часть потока обедненного кислородом газа используют в качестве продувочного потока для продувки выходной стороны мембраны с переносом ионов. 4. The method according to p. 1, characterized in that at least a portion of the oxygen depleted gas stream is used as a purge stream to purge the outlet side of the ion transport membrane. 5. Способ по п. 1, отличающийся тем, что часть первого потока газа после нагрева направляют на входную сторону мембраны с переносом ионов, для получения второго потока входного газа. 5. The method according to p. 1, characterized in that a part of the first gas stream after heating is directed to the input side of the membrane with ion transfer, to obtain a second stream of input gas. 6. Способ по п. 5, отличающийся тем, что указанную часть первого потока нагретого газа добавляют к дополнительному потоку газа для получения второго потока входного газа. 6. The method according to p. 5, characterized in that said part of the first heated gas stream is added to the additional gas stream to obtain a second inlet gas stream. 7. Способ по п. 1, отличающийся тем, что второй поток входного газа нагревают путем переноса тепла из потока чистого газообразного кислорода или потока газа, обогащенного кислородом, и из потока газа, обедненного кислородом, ко второму потоку входного газа. 7. The method according to p. 1, characterized in that the second inlet gas stream is heated by transferring heat from a stream of pure gaseous oxygen or a stream of gas enriched with oxygen, and from a stream of gas depleted in oxygen to the second stream of inlet gas. 8. Способ по п. 7, отличающийся тем, что поток чистого газообразного кислорода или поток обогащенного кислородом газа охлаждают и дополнительно сжимают с помощью вспомогательного компрессора, после чего поток чистого газообразного кислорода или поток обогащенного кислородом газа подвергают теплообмену. 8. The method according to p. 7, characterized in that the stream of pure gaseous oxygen or a stream of oxygen-enriched gas is cooled and additionally compressed using an auxiliary compressor, after which the stream of pure oxygen gas or a stream of oxygen-enriched gas is subjected to heat exchange. 9. Способ по п. 7, отличающийся тем, что поток газообразного топлива добавляют к потоку обедненного кислородом газа для горения перед тем, как поток обедненного кислородом газа подвергают теплообмену. 9. The method according to claim 7, characterized in that the gaseous fuel stream is added to the stream of oxygen-depleted gas for combustion before the stream of oxygen-depleted gas is subjected to heat exchange. 10. Способ по п. 1, отличающийся тем, что детандер для получения энергии используют с целью извлечения энергии из потока обедненного кислородом газа. 10. The method according to p. 1, characterized in that the expander for energy is used to extract energy from a stream of depleted oxygen gas.
RU98110635/02A 1997-06-05 1998-06-03 Method for oxygen enrichment of in-going gas RU2205227C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/868,964 US5855648A (en) 1997-06-05 1997-06-05 Solid electrolyte system for use with furnaces
US08/868,964 1997-06-05

Publications (2)

Publication Number Publication Date
RU98110635A true RU98110635A (en) 2000-02-27
RU2205227C2 RU2205227C2 (en) 2003-05-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU98110635/02A RU2205227C2 (en) 1997-06-05 1998-06-03 Method for oxygen enrichment of in-going gas

Country Status (14)

Country Link
US (1) US5855648A (en)
EP (1) EP0888805B1 (en)
JP (1) JP3392055B2 (en)
KR (1) KR100363752B1 (en)
CN (1) CN1117604C (en)
AU (1) AU733252B2 (en)
BR (1) BR9801767A (en)
CA (1) CA2239441C (en)
DE (1) DE69828465T2 (en)
ES (1) ES2231918T3 (en)
ID (1) ID20885A (en)
MY (1) MY132916A (en)
RU (1) RU2205227C2 (en)
ZA (1) ZA984794B (en)

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