甲基叔丁基醚（MTBE）生產(chǎn)主要設(shè)備的物料衡算計(jì)算案例目錄TOC\o"1-3"\h\u311861.1預(yù)處理V0101物料衡算 2185021.2醚化反應(yīng)器R0101物料衡算 3233181.3催化精餾塔T0201物料衡算 4312491.4萃取塔T0301物料衡算 5248411.5閃蒸塔V0401物料衡算 7168531.6甲醇回收塔T0401物料衡算 8312391.7總工程物料衡算 9化工過程的物料衡算和能量衡算是通過化學(xué)加物理的基本原理，對(duì)化工各個(gè)操作單元的物料平衡與能量平衡進(jìn)行定量的計(jì)算；以此從裝置中找出主副產(chǎn)品的生成量，殘余物料的排出量，確定進(jìn)入裝置原材料的消耗與用量；確定物流的流量、組成、和狀態(tài)；確定設(shè)備內(nèi)物質(zhì)轉(zhuǎn)化與能量的傳遞；從而為確定合理的操作形態(tài)、得出設(shè)備尺寸和進(jìn)行選型、管道安裝與公用工程的購(gòu)買和分配提供基礎(chǔ)理論與資料[14]。物料衡算的基本方法：進(jìn)入系統(tǒng)的質(zhì)量流量與排出系統(tǒng)的質(zhì)量流量之差等于系統(tǒng)內(nèi)質(zhì)量的累積不同的體系物料衡算式為：1.常規(guī)系統(tǒng)：物料的積聚率=物料進(jìn)入率?物料流出率+反應(yīng)生成率?反應(yīng)消耗率2.無(wú)化學(xué)反應(yīng)系統(tǒng)：物料的積聚率=物料進(jìn)入率?物料流出率1.穩(wěn)定系統(tǒng)：物料進(jìn)入率=物料流出率本設(shè)計(jì)以混合C4和外購(gòu)甲醇為原料，使得甲基叔丁基醚年生產(chǎn)量為5萬(wàn)噸/年。在工藝流程得到優(yōu)化后，對(duì)整個(gè)生產(chǎn)體系的各個(gè)化工單元進(jìn)行物料衡算，算出轉(zhuǎn)化率，以及收率，和產(chǎn)品純度等經(jīng)濟(jì)技術(shù)要求指標(biāo)，從而評(píng)估設(shè)計(jì)所選擇的工藝生產(chǎn)路線、方法及工藝流程圖在工程和經(jīng)濟(jì)上是否合理、采用的技術(shù)是否先進(jìn)，以此為后面的設(shè)計(jì)提供依據(jù)。本文通過AspenPlusV11得到整個(gè)流程的物料情況。本次流程模擬一共分為預(yù)處理，醚化反應(yīng)，催化精餾，萃取，甲醇水分離回收幾個(gè)工段。流程圖如圖4.1所示：圖1.1總模擬流程圖1.2主要設(shè)備的物料衡算1.1預(yù)處理V0101物料衡算圖1.2預(yù)處理模型表1.1預(yù)處理V0101物料衡算表項(xiàng)目單位進(jìn)口出口0405CH3OHC40101溫度℃25252520.084壓力bar4444摩爾流量kmol/hr4.511112.483562.333679.327合計(jì)679.327679.327質(zhì)量流量kg/hr144.5243600.00031986.11935730.643丙烷kg/hr0.0010.00057.57557.576異丁烷kg/hr0.0130.0007715.0527715.065正丁烷kg/hr0.0080.0004458.8654458.873異丁烯kg/hr0.0040.0005991.0005991.004正丁烯kg/hr0.0230.0006915.3996915.421反丁烯kg/hr0.0090.0002747.6082747.617順丁烯kg/hr0.0140.0003972.6763972.689異戊烷kg/hr0.0000.000127.945127.945甲醇kg/hr144.2703594.6000.0003738.870水kg/hr0.1045.4000.0005.5042-異丁烯kg/hr0.0000.0000.0000.000叔丁醇kg/hr0.0090.0000.0000.009二甲醚kg/hr0.0120.0000.0000.012MTBEkg/hr0.0600.0000.0000.060合計(jì)35730.64335730.643質(zhì)量分率丙烷0.0000.0000.0020.002異丁烷0.0000.0000.2410.216正丁烷0.0000.0000.1390.125異丁烯0.0000.0000.1870.168正丁烯0.0000.0000.2160.194反丁烯0.0000.0000.0860.077順丁烯0.0000.0000.1240.111異戊烷0.0000.0000.0040.004甲醇0.9980.9990.0000.105水0.0010.0020.0000.0002-異丁烯0.0000.0000.0000.000叔丁醇0.0000.0000.0000.000二甲醚0.0000.0000.0000.000MTBE0.0000.0000.0000.000合計(jì)1.0001.0001.0001.0001.2醚化反應(yīng)器R0101物料衡算圖1.3醚化反應(yīng)器模型表1.2醚化反應(yīng)器R0101物料衡算表項(xiàng)目單位進(jìn)口出口01020103溫度℃52.00060.000壓力bar8.0006.000摩爾流量kmol/hr679.335574.377質(zhì)量流量kg/hr35730.85735730.857丙烷kg/hr57.57657.576異丁烷kg/hr7715.0657715.065正丁烷kg/hr4458.8734458.873異丁烯kg/hr5991.00499.076正丁烯kg/hr6915.4216915.421反丁烯kg/hr2747.6172747.617順丁烯kg/hr3972.6903972.690異戊烷kg/hr127.945127.945甲醇kg/hr3739.014382.331水kg/hr5.5731.8872-異丁烯kg/hr0.0005.991叔丁醇kg/hr0.00919.499二甲醚kg/hr0.0122.700MTBEkg/hr0.0609224.189質(zhì)量分率丙烷0.0020.002異丁烷0.2160.216正丁烷0.1250.125異丁烯0.1680.003正丁烯0.1940.194反丁烯0.0770.077順丁烯0.1110.111異戊烷0.0040.004甲醇0.1050.011水0.0000.0002-異丁烯0.0000.000叔丁醇0.0000.001二甲醚0.0000.000MTBE0.0000.258合計(jì)1.0001.0001.3催化精餾塔T0201物料衡算圖1.4催化精餾塔模型表1.3催化精餾塔T0201物料衡算表項(xiàng)目單位進(jìn)口出口01030201MTBE溫度℃60.00044.110115.160壓力bar6.0005.0005.150摩爾流量kmol/hr574.377518.01071.060合計(jì)574.377591.069質(zhì)量流量kg/hr35730.85729297.1236431.734丙烷kg/hr57.57657.5760.000異丁烷kg/hr7715.0657715.0650.000正丁烷kg/hr4458.8734458.8730.000異丁烯kg/hr99.0761035.6480.000正丁烯kg/hr6915.4216915.4210.000反丁烯kg/hr2747.6172747.6170.000順丁烯kg/hr3972.6903972.6890.000異戊烷kg/hr127.945127.9440.001甲醇kg/hr382.331917.1880.005水kg/hr1.8870.7551.1322-異丁烯kg/hr5.9910.0005.991叔丁醇kg/hr19.4991.80517.694二甲醚kg/hr2.7002.7000.000MTBEkg/hr9224.1891341.8436408.912合計(jì)35730.85635730.856質(zhì)量分率丙烷0.0020.0020.000異丁烷0.2160.2630.000正丁烷0.1250.1520.000異丁烯0.0030.0350.000正丁烯0.1940.2360.000反丁烯0.0770.0940.000順丁烯0.1110.1360.000異戊烷0.0040.0040.000甲醇0.0110.0310.000水0.0000.0000.0002-異丁烯0.0000.0000.001叔丁醇0.0010.0000.003二甲醚0.0000.0000.000MTBE0.2580.0460.996合計(jì)1.0001.0001.0001.4萃取塔T0301物料衡算圖1.5萃取塔模型表1.4水洗塔T0301物料衡算項(xiàng)目單位進(jìn)口出口030102020302C4-OUT1溫度℃40.90650.00051.70946.822壓力bar12.0008.0005.5005.500摩爾流量kmol/hr464.927518.008485.004497.931合計(jì)982.935982.935質(zhì)量流量kg/hr8378.57029296.9479206.29928469.219丙烷kg/hr0.00057.5760.41157.165異丁烷kg/hr0.0007715.06518.7707696.294正丁烷kg/hr0.0004458.87310.8624448.011異丁烯kg/hr0.0001035.9321.7151032.216正丁烯kg/hr0.0006915.42122.3456891.076反丁烯kg/hr0.0002747.6179.0602738.556順丁烯kg/hr0.0003972.68911.1003959.590異戊烷kg/hr0.000127.9440.106127.837甲醇kg/hr6.336917.101922.4191.018水kg/hr8372.2340.7538190.883182.1042-異丁烯kg/hr0.0000.0000.0000.000叔丁醇kg/hr0.0001.7870.3501.436二甲醚kg/hr0.0002.7000.6132.087MTBEkg/hr0.0001341.49311.6631329.829合計(jì)37675.52037675.520質(zhì)量分率丙烷0.0000.0020.0000.002異丁烷0.0000.2630.0020.270正丁烷0.0000.1520.0010.156異丁烯0.0000.0350.0000.036正丁烯0.0000.2360.0020.242反丁烯0.0000.0940.0010.096順丁烯0.0000.1360.0010.139異戊烷0.0000.0040.0000.005甲醇0.0010.0310.1000.000水0.9990.0000.8900.0062-異丁烯0.0000.0000.0000.000叔丁醇0.0000.0000.0000.000二甲醚0.0000.0000.0000.000MTBE0.0000.0460.0020.047合計(jì)1.0001.0001.0001.0001.5閃蒸塔V0401物料衡算圖1.6閃蒸塔模型表1.5閃蒸塔V0401物料衡算項(xiàng)目單位進(jìn)口出口03020401C4-OUT2溫度℃51.710148.306148.306壓力bar5.5005.0005.000摩爾流量kmol/hr485.903242.952242.952合計(jì)485.903485.903質(zhì)量流量kg/hr9222.5334440.1744782.359丙烷kg/hr0.4120.0010.411異丁烷kg/hr18.7880.01318.775正丁烷kg/hr10.8720.00810.864異丁烯kg/hr1.7170.0041.713正丁烯kg/hr22.3640.02322.342反丁烯kg/hr9.0680.0099.059順丁烯kg/hr11.1110.01411.098異戊烷kg/hr0.1060.0000.106甲醇kg/hr922.354144.423777.931水kg/hr8207.0974295.6003911.4972-異丁烯kg/hr0.0000.0000.000叔丁醇kg/hr0.3540.0090.345二甲醚kg/hr0.6140.0120.602MTBEkg/hr11.6760.06011.617合計(jì)9222.5339222.533質(zhì)量分率丙烷0.0000.0000.000異丁烷0.0020.0000.004正丁烷0.0010.0000.002異丁烯0.0000.0000.001正丁烯0.0020.0000.005反丁烯0.0010.0000.002順丁烯0.0010.0000.003異戊烷0.0000.0000.000甲醇0.1000.0330.163水0.8900.9670.8182-異丁烯0.0000.0000.000叔丁醇0.0000.0000.000二甲醚0.0000.0000.000MTBE0.0020.0000.003合計(jì)1.0001.0001.0001.6甲醇回收塔T0401物料衡算圖1.7甲醇回收塔模型表1.6甲醇回收塔T0301物料衡算項(xiàng)目單位進(jìn)口出口040304040406溫度℃60.00089.130128.777壓力bar4.0002.5002.600摩爾流量kmol/hr242.9524.519238.433合計(jì)242.951242.952質(zhì)量流量kg/hr4440.177144.7384295.439丙烷kg/hr0.0010.0010.000異丁烷kg/hr0.0130.0130.000正丁烷kg/hr0.0080.0080.000異丁烯kg/hr0.0040.0040.000正丁烯kg/hr0.0230.0230.000反丁烯kg/hr0.0090.0090.000順丁烯kg/hr0.0140.0140.000異戊烷kg/hr0.0000.0000.000甲醇kg/hr144.424144.4140.010水kg/hr4295.6020.1734295.4302-異丁烯kg/hr0.0000.0000.000叔丁醇kg/hr0.0090.0090.000二甲醚kg/hr0.0120.0120.000MTBEkg/hr0.0600.0600.000合計(jì)4440.1774440.177質(zhì)量分率丙烷0.0000.0000.000異丁烷0.0000.0000.000正丁烷0.0000.0000.000異丁烯0.0000.0000.000正丁烯0.0000.0000.000反丁烯0.0000.0000.000順丁烯0.0000.0000.000異戊烷0.0000.0000.000甲醇0.0330.9980.000水0.9670.0011.0002-異丁烯0.0000.0000.000叔丁醇0.0000.0000.000二甲醚0.0000.0000.000MTBE0.0000.0000.000合計(jì)1.0001.0001.0001.7總工程物料衡算表1.7總工程物料衡算項(xiàng)目單位進(jìn)口出口CH3OHC4H2O-INMTBEC4-OUT1C4-OUT2溫度℃25.00025.00040.000115.16046.81125.000壓力bar4.0004.0006.0005.1505.5004.000摩爾流量kmol/h112.483562.333227.38971.060497.928112.483合計(jì)902.205811.939質(zhì)量流量kg/hr3600.0031986.114099.166431.7344782.3593600.000丙烷kg/hr0.00057.5750.0000.0000.4110.000異丁烷kg/hr0.0007715.0510.0000.00018.7750.000正丁烷kg/hr0.0004458.8640.0000.00010.8640.000異丁烯kg/hr0.0005991.0000.0000.0001.7130.000正丁烯kg/hr0.0006915.3980.0000.00022.3420.000反丁烯kg/hr0.0002747.6070.0000.0009.0590.000順丁烯kg/hr0.0003972.6750.0000.00011.0980.000異戊烷kg/hr0.000127.9440.0000.0010.1060.000甲醇kg/hr3594.600.0006.1420.005777.9313594.600水kg/hr5.4000.0004091.011.1323911.4965.4002-異丁烯kg/hr0.0000.0000.0005.9910.0000.000叔丁醇kg/hr0.0000.0000.00017.6940.3450.000二甲醚kg/hr0.0000.0000.0000.0000.6020.000MTBEkg/hr0.0000.0000.0006408.91211.6160.000合計(jì)39685.27039