各组分百分含量 y16i? y18NH3? y18CH4? y18Ar? y18H2? y18N2?V18i V18571.219*100%?4.877%
11713.4511316.183*100%?11.237%
11713.451397.847*100%?3.396%
1171.43517085.551*100%?60.491%
11713.4512342.651*100%?20.0%
11713.451 进氨冷器液量等于冷交换气冷凝液氨量 L18?L18NH3?L17NH3?279.832m3(标)
进器总物料?V18?L18?11713.451?279.832?11993.283m3(标)
出器物料:已知出气气体中氮含量为2.500%,设出塔气体中氨含量为bm3(标)
b?0.025解
11713.451?571.219b?278.556m3(标)
则氨冷器中冷凝液量: L18/NH3?V18/NH3?b?571.219?278.556?292.664m3(标) 氨冷器出口总量: L2?L17NH3?L18NH3?279.832+292.664=572.496m3(标) 氨冷器出器气体量: V2?V18?b?11713.451?292.664?11420.787m3(标) V2NH3?27.855m63(标)
V2CH4?V18CH4?131.168m33(标) V2Ar?V18Ar?39.784m73(标) V2H2?V18H2?708.555m13(标) V2N2?V18N2?2342.651m3(标)
各组分百分含量 y2i?V2i V2 22
y2NH3?278.556*100%?2.439%
11420.787y2CH4?y2Ar?y2H2?y2N2?1316.183*100%?11.524%
11420.787397.847*100%?3.484%
11420.7877085.551*100%?62.041%
11420.7872342.651*100%?20.512%
11420.787 出器总物料= V2?L2NH3?11420787?572.496?11993.283m3(标) 1.3.14 冷交换器物料计算
进器物料: 冷交换器进器总物料等于氨冷器出器总物料.其中气体入口
V2?11228.373m3(标),液体入口L2NH3?54.592m73(标).由气液平衡计算得:
V?V5?，y?i?F，m?i?L?L16?，x?i?
以1kmol进口物料为计算基准:即F=1
L?V?F(1)L?V?1(1)或
LxNH3?VyNH3?FmNH3(2)LxNH3?VyNH3?FmNH3(2) 将yNH3?0.025,xNH3?0.98425 代入上式 V?0.98425?mNH30.98425?0.025mNH2xNH3?mNH3xNH3?yNH3
?1.026? (3)
0.95925V2NH3V2 (3)式中mNH3可由物料平衡和氨平衡计算mNH3?
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?V2'?V1?V'(4)17?? ?V17'?V8?V13?L15(5)?''V?V?L?L?2NH2NH17NH18NH3(6)333?式中V2'??冷交入口总物料：
'V17??冷交热气出口总物料：
V2'NH3??冷交入口总氨物料：
将V8?10049，V13?137.618m3（标），L15?830.5m3（标）代入上.48m3（标）
/式 V17?10049.48?137.618?830.5?9081.362m3(标)
所以V2/?2911.921?9081.362?11993.283m3(标)
V2/NH3?278.556?279.832?292.664?851.051m3(标) 所以mNH3?V2/NH3V2/?851.051?0.071 代入（3）式得：
11993.283V?1.026?0.071?0.95211993.283L?1?V?1?0.952?0.048 L0.048??0.05V0.952L?L??L?由??可求出冷交换器冷凝液体量 16????0.05
V3?V??V?冷凝液体量 L16?0.049V3?0.05*11993.283?574.809m3(标)
出器物料：冷交换气（冷气）出口气体物料等于进口总物料减去冷凝液体量,
V3?V2/?L16?11993.283?574.809?11418.474m3(标)
V3NH3?11418.474*2.5%?285.462m3(标) V3CH4?11418.474*11.539%?1317.516m3(标) V3Ar?11418.474*3.462%?395.255m3(标)
V3H2?11418.474*61.874%?7065.181m3(标) V3N2?11418.474*20.625%?2355.06m3(标)
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计算误差=
V3?V5*100%??0.023% V5核算氨分离器分离液氨白分率 氨分离器分离液氨百分率 G分%??L15X15*100%
L15X15?L16X16830.5*0.95631*100%?58.399%
830.5*0.95631?574.809*0.98425冷交分离液氨百分数 G %?1?G %?1?58.399%?41.601% 计算误差=
G/?G分G/*100%?0.57588?0.58399??1.389%
0.583991.3.15 液氨储槽物料计算
氨分离器入槽液体L15?830.5m3(标)
L15NH3?83.05*0.9563?179.421m63(标) L15CH4?830.5*0.01725?14.32m23(标) L15Ar?83.05*0.0015?21.25m93(标)
L15H2?830.5*0.01969?16.354m3(标) L15N2?830.5*0.00524?4.248m3(标)
冷交换器入槽液体L16?574.809m3(标)
其中 L16NH3?574.809*0.98425?565.757m3(标)
L16CH4?574.809*0.00427?2.456m3(标) L16Ar?574.809*0.00068?0.39m3(标) L16H2?574.809*0.00825?4.742m3(标) L16N2?574.809*0.00258?1.482m3(标)
入槽混合物料： L21?L15?L16?830.5?574.809?1405.327m3(标) 各组分物料含量：
3 L21NH3?794.216?565.757?1359 .973m（标） 25
3 L21CH4?14.332?2.456?16.779m（标）3 L?1.259?0.39?1.649m（标） 21Ar
3 L21H2?16.354?4.742?21.096m（标）3 L21N2?4.348?1.482?5.83m（标） 百分含量 x21i?L21i L211359.973*100%?96.773%
1405.32716.779*100%?1.194%
1405.327 x21NH3? x21CH4? x21Ar? x21H2? x21N2?1.649*100%?0.117%
1405.32721.096*100%?1.501%
1405.3275.83*100%?0.415%s
1402.3273 出槽物料：液氨储槽出口弛放气 V20?81.355m（标）
3 V20NH3?81.355*0.48427?39.398m （标）3 V20CH4?81.355*0.18104?14.728m （标）3 V?81.355*0.01929?1.569m（标）20Ar
3 V20H2?81.355*0.24707?20.101m（标）3 V20N2?81.355*0.06857?5.579m（标） 出口液氨总物料 L19?L21?L20?1405 .327?81.355?1323.953m3(标）L19NH3?L21NH3?L20NH3?11359.973?39.398?1320.575m3 L19CH4?L21CH4?L20CH4?16.779?14.729?2.051m3
L19Ar?L21Ar?L20Ar?1.649?1.569?0.008m3 L19H2?L21H2?L20H2?21.096?20.101?0.996m3
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