Pipe Stress Analysis Line Hot Thermal Oil Pada Methylester Distilation Plant

Azis, Abdul (2022) Pipe Stress Analysis Line Hot Thermal Oil Pada Methylester Distilation Plant. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 5019201189-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (9MB) | Request a copy

Abstract

PT XYZ merupakan perusahaan baru yang bergerak dibidang oleochemical yaitu produsen dari produk Fatty Acid Methyl Ester (FAME). Terdapat 3 plant yang sudah beroprasi antara lain Biodiesel (BD), Methylester Distilation (MD), dan Glycerine Refined (RG). Pada proses produksi biodiesel terdapat produk utama yang dihasilkan yaitu Fatty Acid Methylester (FAME), dari pengolahan ini akan membutuhkan beberapa bahan utama antara lain Refined Bleached Deodorized Palm Oil (RBDPO), Methanol, dan lain-lain. Selain produk FAME, akan dihasilkan pula produk lain atau limbah yang bisa diolah seperti Crude Glycerine yang akan di olah di plant Refined Glicerine. Produk FAME juga bisa di murnikan lagi melalui distilasi kolom pada plant Methylester Distilation (MD). Pada proses distilasi Methylester akan dipanaskan sampai suhu tertentu pada reboiler. Kebutuhan energi panas sangat diperlukan untuk memanaskan FAME melalui reboiler. Fluida Marlotherm SH digunakan sebagai hot fluid yang membawa energi panas dari thermal oil heater menuju ke reboiler. Spesifikasi dari thermal oil boiler yaitu memiliki desain pressure 12 bar dan mampu menghasilkan panas sampai 320°C. Dalam proses sirkulasi terdapat 2 pompa yang beroperasi secara stand-by, dan juga membutuhkan pipa untuk mengalirkan fluida. Penulisan tugas akhir ini akan membahas berapa minimum ketebalan pipa yang dibutuhkan dan pipe stress analysis. Tujuannya adalah dapat memperoleh ketebalan minimal dari pipa dan berapa nilai tegangan maksimum yang terjadi pada kondisi Hydrotest dan Operation Test, sehingga bisa diketahui tingkat keamanan dari sistem perpipaan tersebut. Code standar yang digunakan dalam penelitian adalah ASME B31.3, dimana analisis dilakukan dengan bantuan software pipe stress. Berdasarkan hasil perhitungan ketebalan minimal pipa didapatkan nilai sebesar 3 mm, masih aman dikarenakan pipa yang digunakan memiliki ketebalan 12,7 mm. Hasil analisa didapatkan nilai tegangan tertinggi pada expansion stress di line HTX-L004 node A20 dengan nilai sebesar 298 N/mm² ,sedangkan kondisi hydrotest tegangan tertinggi terjadi pada line number HTX-L002 node A15 dengan nilai 17 N/mm².
==================================================================================================================================
PT XYZ is a new company engaged in oleochemicals, namely the manufacturer of Fatty Acid Methyl Ester (FAME) products. There are 3 plants that have been operated, including Biodiesel (BD), Methylester Distillation (MD), and Glycerine Refined (RG). In the biodiesel production process, there is the main product produced, namely Fatty Acid Methylester (FAME), from this processing will require several main ingredients including Refined Bleached Deodorized Palm Oil (RBDPO), Methanol, and others. In addition to FAME products, other products or waste that can be processed will also be produced such as Crude Glycerine which will be processed at the Refined Glicerine plant. FAME products can also be purified again through column distillation at the Methylester Distillation (MD) plant. In the distillation process, Methylester will be heated to a certain temperature in the reboiler. The need for thermal energy is indispensable for heating FAME through a reboiler. Marlotherm SH fluid is used as a hot fluid that carries thermal energy from the thermal oil heater to the reboiler. The specifications of the thermal oil boiler are that it has a pressure design of 12 bar and is able to produce heat up to 320 ° C. In the circulation process there are 2 pumps that operate stand-by, and also require pipes to drain the fluid. The writing of this final project will discuss what is the minimum pipe thickness needed and pipe stress analysis. The goal is to be able to obtain the minimum thickness of the pipe and what is the maximum stress value that occurs in hydrotest and operation test conditions, so that the level of safety of the piping system can be known. The standard code used in the study was ASME B31.3, where the analysis was carried out with the help of pipe stress software. Based on the results of the calculation of the minimum thickness of the pipe, a value of 3 mm was obtained, it is still safe because the pipe used has a thickness of 12.7 mm. The results of the analysis obtained the highest stress value on the expansion stress in the HTX-L004 line of node A20 with a value of 298 N / mm², while the highest stress hydrotest condition occurred in the line number HTX-L002 node A15 with a value of 17 N / mm².

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Methylester Distilation, Pipe Stress Analysis, ASME B31.1,
Subjects:	T Technology > TH Building construction > TH6840 Piping installation. Pipefitting
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	20 Feb 2026 02:40
Last Modified:	20 Feb 2026 02:40
URI:	http://repository.its.ac.id/id/eprint/132537

Actions (login required)

View Item