发明名称 |
METHOD OF OBTAINING ULTRA-PURE OXYGEN |
摘要 |
FIELD: cryogenic engineering; methods of obtaining oxygen by low-temperature rectification. SUBSTANCE: industrial liquid oxygen containing high- and low-boiling admixtures is subjected to two-stage rectification cleaning in first column where it is cleaned from high boiling admixtures and part of low-boiling admixtures; in second column it is cleaned from remaining low-boiling admixtures. To obtain purification process, circulating gas flow is admitted to rectification unit; this gas is compressed in compressor, then it is cooled in recuperative heat exchanger and is additionally cooled in coil of column, after which it is throttled into inter-tube space of condenser-evaporator of second column wherefrom vapors are directed to recuperative heat exchanger for cooling the compressed circulating flow. Liquid ultra-clean oxygen is then discharge from column. EFFECT: enhanced efficiency. 2 cl, 1 dwgp
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申请公布号 |
RU2117887(C1) |
申请公布日期 |
1998.08.20 |
申请号 |
RU19960115769 |
申请日期 |
1996.07.30 |
申请人 |
ZAKRYTOE AKTSIONERNOE OBSHCHESTVO "LENTEKHGAZ" |
发明人 |
BUDNEVICH S.S.;KUZNETSOV P.D.;SHURUBTSOV V.N.;SAVCHENKO JU.A.;RUCHKIN A.V.;AKULOV L.A. |
分类号 |
F25J3/04;(IPC1-7):F25J3/04 |
主分类号 |
F25J3/04 |
代理机构 |
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地址 |
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