Feed Preheater 1 E-401 Desulfurisasi R-201 Mixing Point M-201 Feed Heater H-301 Steam Reformer R-301 Feed Steam Superheater H-302 Feed Steam Water Preheater H-303

BAB IV NERACA ENERGI

Basis perhitungan = 1 jam operasi Satuan operasi = kiloJoulejam kJjam Kapasitas produksi = 1200 tontahun Suhu Referensi = 25 o C 298,15 K

4.1 Feed Preheater 1 E-401

Tabel 4.1 Neraca Energi pada Feed Preheater Alur masuk H kjjam Alur keluar H kjjam Umpan 4.772,3217 - Produk - 483.069,825 Gas proses dari Converter 2.023.671,31 1.545.373,58 Total 2.028.443,632 2.028.443,405

4.2 Desulfurisasi R-201

Tabel 4.2 Neraca Energi pada Desulfurisasi Entalpi masuk Entalpi keluar Komponen H kjjam H kjjam CH 4 399615,733 412433,32 C 2 H 6 27315,9022 28225,076 C 3 H 8 21211,5437 21912,747 i-C 4 H 10 5502,42127 5683,5353 n-C 4 H 10 6741,2801 6963,0545 C 5 H 12 4086,4773 4220,7018 C 6 H 14 2827,889 2920,6324 CO 2 10064,8909 10354,691 N 2 5602,10561 5750,4392 H 2 S 101,582073 - Universitas Sumatera Utara

4.3 Mixing Point M-201

Tabel 4.3 Neraca Energi padaMixing Point Masuk kjjam Keluar kjjam Umpan 498.563,97 steam 2.954.249,34 Produk 3.452.813.309 dqdt Total 3.452.813.309 3.452.813.309

4.4 Feed Heater H-301

Tabel 4.4 Neraca Energi padaFeed Heater Alur masuk H kjjam Alur keluar H kjjam Umpan 3.452.813.309 - Produk - 4.019.468,554 dQdT 566.655,245 Total 4.019.468,554 4.019.468,554 H 2 O - 419,72766 subtotal 483.069,825 498.883,92 Entalpi reaksi -442,464 dQdT 15.371,681 Total 498.441,506 498.441,456 Universitas Sumatera Utara

4.5 Steam Reformer R-301

Tabel 4.5 Neraca Energi pada Steam Reformer Komponen Entalpi Masuk Entalpi Keluar kjjam kjjam CH 4 540190,81 150490,51 C 2 H 6 37288,411 349,61555 C 3 H 8 28915,569 5761,214 i-C 4 H 10 7488,9428 2961,4957 n-C 4 H 10 9175,2408 3632,6735 C 5 H 12 5559,7804 2209,8957 C 6 H 14 3840,9158 1085,7138 CO 2 13164,531 22573,825 N 2 7175,2928 11867,564 H 2 O 3400201,98 2373426,76 CO 568220,79 H 2 1567750,1 Sub total 4.019.468,554 4.710.330,16 ∆ H r 4.606.124,54 dQdT - 3.915.262,935 Total 4.710.330,16 4.710.330,16

4.6 Feed Steam Superheater H-302

Tabel 4.6 Neraca Energi padaSteam Superheater Masuk Keluar kjjam kjjam Steam masuk 2.627.925,034 Steam keluar 2.954.249,339 dQdT 326.324,305 Total 2.954.249,339 2.954.249,339 Universitas Sumatera Utara

4.7 Feed Steam Water Preheater H-303

Masuk Keluar kjjam kjjam Steam masuk 111.497,87 Steam keluar 611.653,00 dQdT 500.155,13 Total 611.653,0029 611.653,003

4.8 Feed Steam Air Preheater H-304