廣東石油化工學院跬步千里6設(shè)計說明書附錄

1、70 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計2014 年“中國-三井化學杯”第八屆大學生化工設(shè)計競賽設(shè)計說明題目：70 萬噸/年組合工藝清潔生產(chǎn)書對二甲苯附錄項目設(shè)計環(huán)境預(yù)評價參賽學校：石油化工學院團隊名稱：跬步千里團隊成員：鄧清文、郭 陽、余詩虎、 江衍梁、林曉元指導：陳 輝設(shè)計時間：2014.42014.7不積跬步，無以至千里。荀子·勸學170 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計2014 年“恒逸-三井化學杯”第八屆大學生化工設(shè)計競賽題目：70 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計設(shè)計說明書附錄參賽學校：石油化工學院團隊名稱：跬步千里團隊成員：鄧清文、郭陽、余詩虎、江

2、衍梁、林曉元指導：陳 輝、黃燕青、劉寶生、謝穎、梁朝林設(shè)計時間：2014.42014.7初步設(shè)計說明書附錄·跬步千里目錄第 1 章 物料衡算11.1 物料衡算的意義11.2 物料衡算遵循的原則11.3 物料衡算11.3.1總物料衡算21.3.21.3.3抽提單元4甲苯歧化與烷基轉(zhuǎn)移與擇形歧化組合工藝單元81.3.41.3.51.3.6精餾單元10異構(gòu)化單元14吸附分離單元18第 2 章 能量衡算222.1 能量衡算的意義222.2 能量衡算的原則222.3 能量衡算222.3.12.3.2抽提單元22組合工藝單元242.3.32.3.42.3.5精餾單元27異構(gòu)化單元29吸附分離單元

3、32第 3 章 能量集成353.1 概述353.2 換熱網(wǎng)絡(luò)設(shè)計結(jié)果353.2.1物料流股提取353.2.23.2.3夾點的確定36換熱網(wǎng)絡(luò)設(shè)計37第 4 章 塔設(shè)備的選型和設(shè)計394.1 概述39170 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計4.2塔設(shè)備選型394.2.14.2.24.2.3依據(jù)39原則39塔型選擇404.2.4板式塔塔盤選擇40非芳烴蒸餾塔（T104）設(shè)計414.34.3.14.3.2流體力學數(shù)據(jù)41塔體工藝設(shè)計414.3.34.3.44.3.54.3.64.3.74.3.84.3.9塔板工藝設(shè)計43流體力學檢驗46塔板負荷性能圖48設(shè)計計算結(jié)果50塔附件設(shè)計52塔體總高

4、度53塔體重量544.4塔設(shè)備一覽表56第 5 章 反應(yīng)器的選型和設(shè)計585.1概述58反應(yīng)器類型58傳統(tǒng)歧化反應(yīng)器設(shè)計605.25.35.3.15.3.25.3.35.3.4反應(yīng)條件60反應(yīng)器結(jié)構(gòu)的計算61強度計算和校核63反應(yīng)器高度的確定645.3.55.3.6反應(yīng)器接管內(nèi)徑的計算64反應(yīng)器支座的設(shè)計655.3.7烴化反應(yīng)器工藝及強度計算結(jié)果665.4擇型歧化反應(yīng)器設(shè)計672初步設(shè)計說明書附錄·跬步千里5.4.15.4.25.4.35.4.4反應(yīng)條件67反應(yīng)器結(jié)構(gòu)的計算67強度計算和校核69反應(yīng)器高度的確定715.4.55.4.6反應(yīng)器接管內(nèi)徑的計算71反應(yīng)器支座的設(shè)計715.4

5、.7烴化反應(yīng)器工藝及強度計算結(jié)果725.5異構(gòu)化反應(yīng)器設(shè)計735.5.15.5.25.5.35.5.45.5.55.5.65.5.7反應(yīng)條件73反應(yīng)器結(jié)構(gòu)的計算74強度計算和校核76反應(yīng)器高度的確定77接管內(nèi)徑的計算78反應(yīng)器反應(yīng)器支座的設(shè)計78烴化反應(yīng)器工藝及強度計算結(jié)果795.6反應(yīng)器一覽表80第 6 章 換熱器的選型和設(shè)計826.1概述82換熱器類型82選型原則83換熱器的選型計算856.26.36.46.4.16.4.26.4.3貧溶劑水冷器 E10585分餾塔進料加熱器 E10189預(yù)分餾塔塔底再沸器 E103936.5換熱器一覽表97第 7 章 泵的選型和設(shè)計1037.1 概述10

6、37.2 泵的類型103370 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計7.3 選型依據(jù)及原則1037.3.1 依據(jù)1037.3.2 原則1047.4 泵的選型計算1057.5 泵一覽表110第 8 章 壓縮機的選型和設(shè)計1158.1概述115壓縮機類型1158.28.3選型原則116壓縮機選型計算117壓縮機一覽表1198.48.5第 9 章 儲罐的選型和設(shè)計120概述120選型原則120對二甲苯罐設(shè)計1219.19.29.39.3.19.3.2對二甲苯基本性質(zhì)121儲罐的選型1229.3.3儲罐體積計算1229.4苯塔回流罐設(shè)計1229.4.1 工藝基本參數(shù)1229.4.2 回流罐體積計算

7、122氣液分離罐設(shè)計123儲罐一覽表124管道的選型和設(shè)計1279.59.6第 10 章10.1 管道選型依據(jù)12710.2 設(shè)計要求12710.3 管道選型方法12810.3.1 流速的確定1284初步設(shè)計說明書附錄·跬步千里10.3.2 管徑的確定12910.3.3 公稱直徑及管道壁厚的確定13010.4 管道一覽表130閥門設(shè)計選型176第 11 章11.1閥176旁路閥和閥17611.211.3放空閥176閥門計算17611.411.5閥門一覽表177第 12 章主要物料 MSDS19112.1 概述19112.2 主要物料 MSDS19112.2.112.2.212.2.3

8、苯191鄰二甲苯195對二甲苯19812.2.412.2.5甲苯203氫氣20712.2.6一氧化碳210570 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計第1章 物料衡算1.1 物料衡算的意義在化學工程中，設(shè)計或改造工藝流程和設(shè)備、了解和生產(chǎn)操作過程、核算生產(chǎn)過程的效益、確定原材料消耗定額、確定生產(chǎn)過程的損耗量、對現(xiàn)有的工藝過程進行分析、選擇最有效的工藝路線、對設(shè)備進行最佳設(shè)計以及確定最佳操作條件等都要進行物料衡算。而且，化學工程的開發(fā)與放大都以物料衡算為基礎(chǔ)的。物料衡算是質(zhì)量守恒定律的一種表現(xiàn)形式。凡引入某一設(shè)備的物料成分、質(zhì)量或體積等于操作后所得產(chǎn)物的成分、質(zhì)量或體積加上物料損失。1.2

9、物料衡算遵循的原則物料衡算的理論基礎(chǔ)是質(zhì)量守恒定理。它是研究某一體系內(nèi)進出的物料量及組成的變化情況。進行物料衡算時，必須先確定衡算的體系。對一般體系，均可用如下表示：系統(tǒng)中的積累輸入輸出生成消耗在穩(wěn)定狀態(tài)下有：輸入輸出生成消耗特別地，當系統(tǒng)沒有化學反應(yīng)時，則可簡化為：輸入輸出1.3 物料衡算的步驟（1）確定衡算范圍，畫出衡算示意圖，標明各股物料的方向及組成。（2）定出衡算基準，對連續(xù)操作常以時間為基準如：kg/h，件/h，t/h；對間歇操作，常以一批物料（即一個操作循環(huán)為基準）?；鶞蔬x定后，各流股按所選基準進行計算。1.3 物料衡算1初步設(shè)計說明書附錄·跬步千里本項目利用 C7+重整

10、油和乙烯 C8 芳烴及乙烯甲苯，乙烯廠氫氣生產(chǎn)對二甲苯。整個流程分為 5 個單元：抽提單元、甲苯歧化與烷基轉(zhuǎn)移與擇形歧化組合工藝單元、精餾單元、異構(gòu)化單元、吸附分離單元。現(xiàn)對整個流程和 5 個單元進行物料衡算。1.3.1 總物料衡算本工藝項目的系統(tǒng)總物料衡算結(jié)果見表 1-3-1-1 和表 1-3-1-2。表 1-3-1-1流入系統(tǒng)物料匯總2ITEMINC7+重整油乙烯甲苯乙烯C8芳烴氫氣解吸劑+水環(huán)丁砜+水Temperature （ ）431554040177124Pressure（MPa）0.1012.450.1011.030.951.6Vapor Frac000100Mole Flow （

11、kmol/hr）963.133147.376127.125901.317411.2884546.076Mass Flow（kg/hr)10625013587.5135001816.94855108531250Total（kg/hr）721512.44870 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計表 1-3-1-2流出系統(tǒng)物料匯總由表 1-3-1-1 和表 1-3-1-2 可系統(tǒng)流入流出總物料平衡3ITEMOUTPX擇形歧化苯傳統(tǒng)歧化苯抽余油工業(yè)氫廢水廢解吸劑其他烯烴Temperature（ ）4090904343406060195Pressure（MPa）0.1010.150.120.20.

12、3150.30.170.1012.45Vapor Frac000010000MoleFlow（kmol/hr）831.53975.15318.41675.2572278.615148.1490.014740.5687.773Mass Flow（kg/hr)88281.6565870.4851354.5917654.6486551.8382668.9531.329608932.932195.691Total（kg/hr）721512.448初步設(shè)計說明書附錄·跬步千里1.3.2 抽提單元抽提單元 Aspen 流程圖見圖 1-3-2-1。抽提單元物料衡算結(jié)果見表 1-3-2-1圖 1-3

13、-2-1抽提單元 Aspen流程圖470 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計表 1-3-3-1抽提單元物料衡算結(jié)果5ITEMINOUTC7-芳烴和非芳烴環(huán)丁砜循環(huán)環(huán)丁砜抽余油芳烴水Temperature C9087160.243.05220614043Pressure bar6.8120.220.40.18Vapor Frac000000Mole Flow kmol/hr284.41334546.075764393.60175.2565898214.301322147.33Mass Flow kg/hr26948.01531250527986.3647654.6483419902.789

14、2654.20866Volume Flow cum/hr36.26271439.342109510.14411.366930323.1369618EnthalpyGcal/hr-2.60294-461.12011407.247-3.97183380.13531823-10.842Mass Flow kg/hrBENZENE21.2500.2837873320.9661634.82E-05N-HEP-016141.2506140.1624400.00141METHY-01456.87220456.720774.9306e-080.000498TOLUE-0119149.4100.76719615

15、19148.64493.35E-05N-OCT-011104.99201055.303314.333e-096.13E-05CYCL0.00673700.000541463.69e-052.21E-10EB31.3946103.2601e-0631.3946124.41E-11P-XYL-0114.2915301.3551e-0614.29153412.02E-11初步設(shè)計說明書附錄·跬步千里6M-XYL-0125.405101.3803e-0625.40511041.77E-11O-XYL-013.02196806.4425e-093.021968619.67E-14NONANE0

16、.02808100.0014359007.99E-09N-PRO-010.0011304.0654e-052.0304e-074.73E-07ISOPR-010.01255905.5477e-110.012558852.25E-16N-PROPY0.004653000.0046525301:3:5-010.003888000.0038882801,2,3-TR7.23E-05007.2322e-0501,2,4-TR0.000318000.0003181901-METH-30.024863000.0248627601-MET-010.002181000.002181300N-DEC-014.4

17、6E-0501.5535e-0803.14E-152:2-D-010.00097301.0305e-0504.29E-07N-BUT-011.74E-0604.2705e-101.6466e-074.47E-121-MET-026.44E-07006.4342e-070.00E+001:2:4-015.13E-07005.0093e-070.00E+00NAPH6.53E-10004.4079e-100.00E+00STY0.037923000.037922610SULFO-015.641e-08528593.755.641e-08658.333229070 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項

18、目設(shè)計由表 1-3-2-1 可知抽提單元物料平衡。7WATER1.408792122656.251.408792120.645013112654.20866Total（kg/hr）558198.0155198.01初步設(shè)計說明書附錄·跬步千里1.3.3 甲苯歧化與烷基轉(zhuǎn)移與擇形歧化組合工藝單元歧化單元 Aspen 流程圖見圖 1-3-3-1。歧化單元物料衡算結(jié)果見表 1-3-3-1。圖 1-3-3-1歧化化單元 Aspen流程圖表 1-3-3-1歧化單元物料衡算結(jié)果8ITEMINOUTE206-INV205-OUTC203-OUTTemperature C97.64060Pressu

19、re bar15.1336.7Vapor Frac0.4080.0031Mole Flow kmol/hr743.517457.019248286.462217Mass Flow kg/hr42119.17541524.2991594.875281Volume Flow cum/hr657.80551.9048922219.827068EnthalpyGcal/hr2.8881.617704120.05366513Mass Flow kg/hrBENZENE67.05973045923.963130N-HEP-01000METHY-01000TOLUE-0141378.505427889.45

20、010N-OCT-0100070 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計9CYCL000EB3.4668446241.8553530P-XYL-0115.49378647166.68430M-XYL-012.89451491145.696060O-XYL-012.7211999651.21740270NONANE6.799563916.799563870N-PRO-016.793750526.793750520ISOPR-01000N-PROPY0001:3:5-010001,2,3-TR0001,2,4-TR6.793755.1960248201-METH-30001-MET-016.79

21、3750016.793750010N-DEC-010002:2-D-016.79422266.79422260N-BUT-010001-MET-020001:2:4-01000NAPH000STY000SULFO-01000WATER000H2589.4715345.82125214576.303961CH4057.63591760C2H6000C6H14-16.793755395.441223410CO4.10352360.041035234.06248836CO26.44743570.064474356.38296134N28.207949640.082079498.12587014初步設(shè)

22、計說明書附錄·跬步千里由表 1-3-3-1 可知，歧化單元物料平衡。1.3.4 精餾單元精餾單元 Aspen 流程圖見圖 1-3-4-1。精餾單元物料衡算見表 1-3-4-1。圖 1-3-4-1精餾單元 Aspen 流程圖10C3H800.695267680C3H6-100.66348340C6H12-10.033742001.472704360C10H14E66.011e-171.137988850Total（kg/hr）42119.17542119.174370 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計表 1-3-4-1精餾單元物料衡算結(jié)果11ITEMINOUTT401-INT5

23、03-IN2M501-INT401-DT402-DE803-INA601-INT601-WTemperature100173.619992.2572183112.427053250.180064173.117895209.956373Pressurebar42.07211.41.013303949.11.51.76Vapor Frac01000000MoleFlowkmol/hr6580.543713367.49802677.46815118.4161983209.6414264027.973016165.65592203.823336Mass Flowkg/hr765366.08535821

24、9.17879171.60351450.9799519361.4502428115.261727355.20926473.9661VolumeFlowcum/hr963.01234356754.9201111.8874461.8121002424.8593998687.6126261004.0275236.7435753EnthalpyGcal/hr-51.85693135.3989619-0.93557290.247723451.3406988628.6767599-25.952745-1.3735188Mass Flowkg/hrBENZENE1357.30603107.1353272.4

25、219e-091354.591452.71458523107.13532700N-HEP-0103.366e-079.8098e-05009.8435e-0500METHY-011.5608e-071.642e-050.002757054.9428e-081.0665e-070.0027734700TOLUE-0119148.6449808.5071417.4677645195.743192719014.797854.0796087.9336e-081.7219e-15N-OCT-018.0016e-070.0898040910.63290646.7172e-107.6282e-0710.72

26、271053.84e-083.2327e-15CYCL16186.792147.2473458127.4932626.6964e-080.001325766.6705545716347.02157.83928617EB14681.7604152245.9665387.355370.00012013208.037891157488.2914618.64290.11098111P-XYL-0149502.794943679.90665723.208430.0001148199.005243882900.685715906.01950.1994543初步設(shè)計說明書附錄·跬步千里12M-XY

27、L-0131699.3295113306.88112427.09484.8348e-0535.9676245131440.91925956.06140.35813756O-XYL-0152724.89643304.46427646.978024.3259e-060.7529247651657.886652014.93692.76190933NONANE1675.040893198.1427663.72191872.0044e-060.168552673233.620321703.053510.06318937N-PRO-015726.290486.7943857753.12386992.229

28、5e-080.000107820.000798915777.18629.0216284ISOPR-0141110.4362138.368932424.9874416.4831e-080.00067795139.09678541512.640122.0549534N-PROPY57201.90950.055748821274.995351.5795e-092.0072e-060.0556523158293.9467182.9582371:3:5-01118262.14473.81744816608.746118.0149e-111.6538e-080.00153238123495.5541449

29、.152051,2,3-TR9820.734132.699999723113.124938.4515e-156.8303e-145.0669e-1210151.46062785.098471,2,4-TR5888.34147.891458632220.624682.4184e-131.18e-112.8787e-087733.67771383.1798211-METH-3270773.8620.0717882912505.60012.2641e-091.5564e-060.07139495281923.0311356.431571-MET-0160406.85276.793375663325.

30、622825.5756e-111.2481e-081.058e-0562733.42511005.84372N-DEC-017776.553446.2333e-05106.2499554.4304e-112.8371e-096.1737e-057761.71465121.0887332:2-D-01668.974513279.2901037.436527361.9913e-070.00425754275.91576679.6920190.08910735N-BUT-0180.1624529053.12499832.7493e-151.2871e-141.1998e-1979.592599553

31、.69485171-MET-02126.9401090180.6249998.7857e-187.1664e-183.544e-17126.002221181.5628871:2:4-01125.247349016819.3755.9119e-223.4728e-243.8476e-25124.04793216820.5745NAPH0.0612017301083.753.2952e-294.4075e-331.9232e-370.060569541083.75063STY0.000192992.1279e-050.261299158.5817e-151.1362e-090.1062220.1

32、55280151.128e-05SULFO-010000000070 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計由表 1-3-4-1 可知精餾單元物料平衡。13WATER0.645013110.0009070700.6450131100.0009070700C10H14-8420.3657751005.0534201.2285e-175.7912e-185.3069e-18417.2871871008.13201Total（kg/hr）1202756.8631202756.866初步設(shè)計說明書附錄·跬步千里1.3.5 異構(gòu)化單元吸附分離單元 Aspen 流程圖見圖 1-3-5-1。異構(gòu)

33、化單元物料衡算結(jié)果見表 1-3-5-1圖 1-3-5-1異構(gòu)化單元 Aspen 流程圖1470 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計表 1-3-5-1異構(gòu)化單元物料衡算結(jié)果15ITEMINOUTE802-INMAKEC8RECY-H2P803-OUTT804-DTO-T103DIRTY-WC801-OUTTemperature145.0706574080192.701233135.7112971104080Pressurebar7.21.0132510.320.72.83.8332Vapor Frac00101001MoleFlowkmol/hr3256.83452127.12478890

34、1.31743367.499047.0590617410.06211640.73745305901.334885Mass Flowkg/hr346380.301135001816.94772358219.284585.3179991005.7669413.28542322025.62021VolumeFlowcum/hr460.91284915.84033952580.94909513.24616380.2371661.284921710.01338736838.643296EnthalpyGcal/hr2.80180586-0.46554670.3444460611.87921890.141

35、234330.02958676-0.05014490.18930904Mass Flowkg/hrBENZENE105.87438700107.135327428.75658888.844447600N-HEP-019.8434e-07003.366e-073.8555e-072.622e-0700METHY-012.7735e-05001.642e-053.8532e-067.4611e-0600TOLUE-01876.50714165.3477478204.16575300N-OCT-010.10722699000.089804090.004062720.0133602900CYCL0.0

36、591636447.25047.24734580.000206710.0024475200EB157432.7117015.950152245.96657.956962436.48503600P-XYL-01179.9676161375.65043679.90669.4994842276.897821800初步設(shè)計說明書附錄·跬步千里16M-XYL-01131475.3073578.850113306.88121.5750457178.92733200O-XYL-0151690.6471474.2043304.46421.7845927117.645026300NONANE3153.

37、84362003198.142760.332588892.7024707300N-PRO-016.79445786006.794385771.2076e-050.0001429700ISOPR-01125.04022800138.3689320.000534170.0065757700N-PROPY0.05075521000.055748823.0151e-084.6255e-07001:3:5-010.001379862.7073.81744818.9406e-060.00016577001,2,3-TR02.702.699999721.0206e-082.7037e-07001,2,4-T

38、R5.191463222.707.891458632.0367e-074.3979e-06001-METH-30.06437829000.071788292.4012e-083.9147e-07001-MET-016.79338663006.793375666.2286e-071.1499e-0500N-DEC-015.6388e-05006.2333e-051.0152e-111.6369e-10002:2-D-01303.2901030.008624670.0762917000N-BUT-01000000001-MET-02000000001:2:4-0100000000NAPH00000

39、000STY0.10382186000.106395483.0668e-063.15e-0500SULFO-010000000070 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計由表 1-3-5-1 可知，異構(gòu)化單元物料平衡。17WATER13.3378665000.000907070.051532021.4313e-1113.28542320C10H14-81005.05343001005.053424.3834e-071.369e-0500H2001816.9477200001800.37966CH4000000025.6430306C2H60000000199.597516C6H14-100

40、000000CO00000000CO200000000N200000000C3H800000000C3H6-100000000C6H12-100000000C10H14E61.8173e-060000001.8173e-06Total（kg/hr）361697.2487361697.249初步設(shè)計說明書附錄·跬步千里1.3.6 吸附分離單元吸附分離單元 Aspen 流程圖見圖 1-3-6-1。吸附分離單元物料衡算結(jié)果見表 1-3-6-1。圖 1-3-6-1吸附分離單元Aspen流程圖1870 萬噸/年組合工藝清潔生產(chǎn)對二甲苯項目設(shè)計表 1-3-6-1吸附分離單元物料衡算結(jié)果19ITE

41、MINOUTT703-INP710-OUTPXE802-INM703-INT706-WP705-OUTV703-OUTV702-H2OV703-H2OTemperature177178.114156158.366842145.070657196.2206.976703198.609577666066Pressurebar9.54.863.877.22.221.7424.31.51.081.5Vapor Frac0000000000MoleFlowkmol/hr946.8244213564.56332831.5202613256.83452304.4645030.00990128113.6189

42、311.603592710.018856070.06278055Mass Flowkg/hr103277.634387604.07888279.6589346380.30140865.57821.3289619114826.4974170.0075420.339697381.1310097VolumeFlow cum/hr144.720534541.520545120.397389460.91284957.83854150.0019111221.12930990.206235640.000345500.00118619EnthalpyGcal/hr0.780871066.652695550.5

43、96038582.80180586-1.7904055-5.002e-05-0.5124778-0.0063901-0.0012754-0.0042644Mass Flowkg/hrBENZENE1.07135327106.0639740.71793272105.874387004.2491e-090.3534201104.3367e-07N-HEP-019.745e-059.8435e-077.7234e-059.8434e-07007.8814e-122.0217e-0501.4279e-17METHY-010.002745732.7735e-050.002423052.7735e-050

44、04.4476e-090.0003226701.3364e-13TOLUE-018.84557585875.7120098.24131044876.1752057.8165e-1200.000108270.6041571101.1425e-08N-OCT-0110.61548340.1072271110.18535910.107226991.9077e-1400.000714950.4294093204.1379e-15CYCL6.603849030.066705542.032694230.059163642.3946e-095.3683e-184.570791940.0003628508.2

45、075e-14EB0157729.3960157432.7119.5043e-061.74e-160000P-XYL-0189877.1967180.11462388115.0385179.9676162.3034e-087.512e-191593.76713168.39105307.3715e-08初步設(shè)計說明書附錄·跬步千里20M-XYL-01118.427794131468.01115.777012131475.3071.8426e-056.4537e-162.451203730.199578401.2275e-10O-XYL-0131.025460251678.074827.659017351690.6474.9684e-057.4405e-153.3