发明名称 |
METHOD AND APPARATUS FOR NATURAL GAS PARTIAL LIQUEFACTION |
摘要 |
FIELD: liquefaction of pure gases and gas mixtures. SUBSTANCE: method involves initial cooling and dewatering of pressurized natural gas; expanding of part of direct flow and its mixing with reverse flow; cooling, throttling and separating of direct flow into vapor fraction and liquid fraction into accumulator/separator for liquid-vapor mixture; dividing of vapor fraction into two vapor flows; feeding of first vapor flow through pressure regulator and using of first vapor flow for cooling of direct flow; condensing of second vapor flow for the second time by heat-exchanging with liquid fraction directed to reverse flow; throttling of condensed fraction into liquid natural gas accumulator along with vapor fraction removing; providing necessary temperature difference for condensation by increasing of vapor fraction pressure or by decreasing of liquid fraction pressure. EFFECT: reduced contents of high-boiling components and carbon dioxide in resultant liquefied natural gas and low cost of natural gas purification process. 4 cl, 2 dwg
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申请公布号 |
RU2212598(C1) |
申请公布日期 |
2003.09.20 |
申请号 |
RU20020104779 |
申请日期 |
2002.02.26 |
申请人 |
GORBACHEV STANISLAV PROKOF'EVICH |
发明人 |
GORBACHEV S.P. |
分类号 |
F25J1/00;(IPC1-7):F25J1/00 |
主分类号 |
F25J1/00 |
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