Symmetry Tailored workspaces—optimized facility Process Software Platform Steam Cracking Furnaces User-Friendly Interface PIONA Molecular Structure Technology Symmetry Users can easily link the Symmetry platform to Excel using our built-in Excel Hydrocarbon fluids are complex mixtures of many chemical species. Unit Operation which eliminates the need to write code. This poses a challenge for characterization using conventional methods, where hypothetical components need to be created for each sample, Tailored workspaces—optimized facility Feedstocks Yield Additionally, the Symmetry platform includes a Component Object Model blends, and product. Selection Prediction (COM) link layer which provides a customizable interface that enables you to interact directly with the process simulator without the GUI. This can be The Symmetry platform’s PIONA molecular-structure-characterization Total used to link the Symmetry platform with any COM-compliant application approach represents hydrocarbon fluids in terms of chemical families Optimization such as Excel, Visual Basic, C++, Python, and many others. and carbon number. We can rigorously capture the essential chemistry Hydrocarbon fluids are complexof the mixtures fluids of andmany chemicalblends species. to calculate This poses a chemical challenge for characteriza�onand physical using properties. conven�onal methods, where hypothe�cal components need to be created for each sample, blends and products. Tube TemperatureThis approach can also mechanistically predict kinetic rates using only 8 Cur Row = 170 Tube Coil Inlet = 0.02 mm Case Name = SteamCrackingFurnace-C2-C3.vsym 1120 Symmetry’ s PIONA molecular structure characteriza�on approach represents hydrocarbon fluids in terms of chemical families and carbon Coke Growth Friendly START Row = 171 Tube Pass 2 = 7.64 mm Tube Pass 4 = mm LastRow = 500 7.98 Number of service runs = 8 1080 number.Max.Tube TheTemp. structures useda limited are the PIONA number group: Paraffins,of components. iso-Paraffins, Olefins, This Naphthenesenables andyou different to perform forms of Aroma�cs. highly We can Tube Coil Outlet = 13.61 mm Service Run Profit = 37561 STOP Prediction Interface Max Coil DP = 150.0 kPa *Unit conversion: 1040 Max Tube T = 1093.3 C y = BIAS + x*MULT (from data to model) Time Step = 6 capture the essen�alTube Temp. chemistryaccurate of the fluidsfeed and blending blends rigorously studies, to calculate including chemical and reaction physical proper�es. kinetics This prediction. approach can also 1000 SAVE POIINT Run Length 39 960 mechanis�cally predict kine�c rates using only a limited number of components. This allows the user to perform highly accurate feed blending COKE COKE COKE COKE COKE COKE COKE COKE MAX MAX 920 Description Save "Fixed" "Fixed" "Fixed" "Fixed" "Fixed" "Fixed" "Fixed" "Fixed" "Constraint""Constraint" studies, including reac�on kine�cs predic�on. Temperature Intelligent Simulation and Optimization Tag Name Point Coil Inlet Pass 6 Pass 7 Coil Outlet Coil Inlet Pass 6 Pass 7 Coil OutletCoil DP Tube T 880 C4LPG Propane Unit Bias Ethane COT Blending Feed Unit Mult 840 Units (Y/N) mm mm mm mm mm/day mm/day mm/day mm/day kPa C 800 01-Jan-19 00:00:00 No 0.0 0.0 0.0 0.0 0.00 1.80 1.90 3.50 102.0 965.0 2019/1/1 2019/1/15 2019/1/29 2019/2/12 of Steam Cracking Furnaces 01-Jan-19 06:00:00 No 0.0 0.5 0.5 0.9 0.00 0.19 0.19 0.36 103.6 975.3 01-Jan-19 12:00:00 No 0.0 0.5 0.5 1.0 0.00 0.19 0.19 0.36 103.9 976.3 01-Jan-19 18:00:00 No 0.0 0.6 0.6 1.1 0.00 0.19 0.19 0.36 104.1 977.3 Coke Thickness 02-Jan-19 00:00:00 No 0.0 0.6 0.6 1.2 0.00 0.19 0.20 0.36 104.4 978.4 14 ■ 02-Jan-19 06:00:00 No 0.0 0.7 0.7 1.3 0.00 0.19 0.19 0.36 104.6 979.3 C1 C1 C2 Symmetry*, a process software platform, is a comprehensive simulator that Paraffins, isoparaffins, olefins, naphthenes, and aromatics (PIONA) Tube Temperature C2 C[3-4] 8 Cur Row = 170 Tube Coil Inlet = 0.02 mm Case Name = SteamCrackingFurnace-C2-C3.vsym C1 C[3-4] C[5-6] 02-Jan-19 12:00:00 No 0.0 0.7 0.7 1.3 1120 0.00 0.19 0.20 0.36 104.9 980.4 12 C2 C[7-8] C[3-4] C[5-6] START Row = 171 Tube Pass 2 = 7.64 mm C[5-6] C[7-8] C[9-11] 02-Jan-19 18:00:00 No 0.0 0.7 0.8 1.4 0.00 0.19 0.19 0.35 105.1 981.3 C[7-8] C[9-11] C[12-14] Coil Outlet C[15-17] LastRow = 500 Tube Pass 4 = 7.98 mm Number of service runs = 8 1080 C[9-11] C[12-14] 03-Jan-19 00:00:00 No 0.0 0.8 0.8 1.5 0.00 Max.Tube0. 1Temp9 . 0.20 0.36 105.4 982.4 10 C[12-14] C[15-17] C[18-20] Tube Coil Outlet = 13.61 mm Service Run Profit = 37561 C[15-17] C[18-20] C[21-24] empowers all aspects of your models from reservoir to product distribution. C[18-20] C[25-28] A- molecular structure environment C[21-24] STOP A A- 03-Jan-19 06:00:00 No 0.0 0.8 0.9 1.6 1040 0.00 0.19 0.20 0.36 104.9 983.3 C[21-24] C[25-28] A- C29+ N S,N,V Max Coil DP = 150.0 kPa *Unit conversion: A- A- O Dehyd 8 C[25-28] A- C29+ N A S,N,V I C29+ A S,N,V O Dehyd P 03-Jan-19 12:00:00 No 0.0 0.9 0.9 1.7 0.00 0.19 Tube 0Temp..20 0.36 105.1 984.3 N Dehyd I Max Tube T = 1093.3 C y = BIAS + x*MULT (from data to model) Time Step = 6 I O P 1000 P SAVE POIINT 03-Jan-19 18:00:00 No 0.0 0.9 1.0 1.8 0.00 0.19 0.20 0.36 105.4 985.3 6 C1 C2 ■ 04-Jan-19 00:00:00 No 0.0 1.0 1.0 1.9 960 0.00 0.19 0.20 0.36 105.6 986.3 Coil Intlet C[3-4] Feedstock selection and blending optimization Run Length 39 C[5-6] 4 COKE COKE COKE 0C4O-JKaEn-19 C0O6:K0E0:00 CONKoE COKE 0.0COKE M1.A0X M1A.1X 2.0 0.00 0.19 0.20 0.35 105.8 987.2 C[7-8] The Symmetry platform’s steam cracking furnaces are thermal cracking 920 C[9-11] Description Save "Fixed" "Fixed" "Fixed" 0"4F-iJxaend-"19 "1F2ix:0e0d:"00 "FiNxeod" "Fixed"0.0"Fixed" "1C.1onstraint""1C.o1nstraint" 2.1 0.00 0.19 0.20 0.35 106.1 988.1 Coke Thickness [mm] C[12-14] Temperature 2 C[15-17] Tag Name Point Coil Inlet Pass 6 Pass 7 0C4o-iJl aOnu-t1le9t C1o8i:l 0In0le:0t 0 PaNsso 6 Pass 7 0.0Coil OutletC1o.1il DP T1u.b2e T 2.1 880 0.00 0.19 0.20 0.35 106.3 989.1 C[18-20] ■ Unit Bias C[21-24] Easy matching of plant operating data 05-Jan-19 00:00:00 No 0.0 1.2 1.2 2.2 0.00 0.19 0COT.20 0.35 106.6 990.1 0 A- models that include rigorous kinetic reactions where a wide range of Unit Mult 840 C[25-28] A- 2019/1/1 2019/1/15 2019/1/29 2019/2/12 C29+ A S,N,V 05-Jan-19 06:00:00 No 0.0 1.2 1.3 2.3 0.00 0.19 0.20 0.35 106.8 990.9 N Dehyd Units (Y/N) mm mm mm mm mm/day mm/day mm/day mm/day kPa C I O 800 P 01-Jan-19 00:00:00 No 0.0 0.0 0.0 0.0 0.00 1.80 1.90 3.50 102.0 965.0 2019/1/1 2019/1/15 2019/1/29 2019/2/12 feeds—from light hydrocarbons, such as ethane, all the way to vacuum ■ 01-Jan-19 06:00:00 No 0.0 0.5 0.5 0.9 0.00 0.19 0.19 0.36 103.6 975.3 Seamless integration of cracking furnaces and product separation 01-Jan-19 12:00:00 No 0.0 0.5 0.5 1.0 0.00 Tube0.19 Temperature0.19 0.36 103.9 976.3 8 Cur Row = 170 Tube Coil Inlet = 0.02 mm01-Jan-19 18:0C0a:s0e0 NaNmoe = Steam0C.0rackingF0u.r6nace-C20-C.63.vsym 1.1 0.00 0.19 0.19 0.36 104.1 977.3 Coke Thickness START 1120 Row = 171 Tube Pass 2 = 7.64 mm02-Jan-19 00:00:00 No 0.0 0.6 0.6 1.2 0.00 0.19 0.20 0.36 104.4 978.4 14 residues—are heated. The resulting changes in composition due to LastRow = 500 Tube Pass 4 = 7.98 mm02-Jan-19 06:N00u:m00berN oof service ru0n.s0 = 80.7 0.71080 1.3 Max.Tube0.0 0Temp.