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ITS » Paper and Presentation » S1 Teknik Fisika - Lintas Jalur
Posted by aprill@is.its.ac.id at 29/06/2015 20:47:53  •  774 Views


IMPLEMENTASI SAFETY INSTRUMENTED SYSTEM SIS DENGAN METODE LAYER OF PROTECTION ANALYSIS LOPA PADA UNIT KOLOM DISTILASI PABRIK BIO ETHANOL PTPN X MOJOKERTO

IMPLEMENTATION OF SAFETY INSTRUMENTED SYSTEM SIS WITH METHODS LAYER OF PROTECTION ANALYSIS LOPA DISTILLATION COLUMN UNIT BIO ETHANOL PLANT PTPN X MOJOKERTO

Author :
NURRAKHMAD, FIRMAN ( 2411 105 002 )




ABSTRAK

Kolom distilasi merupakan pemisahan komponen berdasarkan titik didihnya. Titik didih etanol murni adalah 78C sedangkan air adalah 100C kondisi standar. Dengan memanaskan larutan pada suhu rentang 78-100C akan mengakibatkan sebagian besar etanol menguap dan melalui unit kondensasi akan bias dihasilkan etanol dengan konsentrasi 95. Dalam tugas akhir ini dilakukan analisa Safety pada kolom distilasi menggunakan metode Layer Of Protection Analysis LOPA. Pada metode ini memungkinkan pengguna untuk menentukan risiko yang terkait dengan berbagai peristiwa berbahaya dengan memanfaatkan tingkat keparahan dan kemungkinan peristiwa. Pengambilan data yang digunakan adalah diagram PID dan data dari OREDA per komponen yang terdapat kolom distilasi. Hasil dari analisa lopa di peroleh PFD target yang masuk kedalam golongan no SIL 5 loop SIL 0 3 loop dan SIL 2 1 loop yang berarti hanya ada 1 loop yang mungkin memerlukan SIF yaitu loop 7. Kondisi existing saat ini pada loop 7 dengan target SIL 2 pada loop 7 ini tidak terdapat safety berupa BPCS dan mekanikal safety seperti relief valve untuk keamanan dan belum ada aturan yang mengatur pelarangan masuk didaerah yang berbahaya. Pada line ini penambahan BPCS tidak bisa dilakukan karena line ini sudah digunakan untuk pengendalian flow. Untuk aturan pelarangan masuk didaerah yang berbahaya tidak bisa dilakukan dikarenakan didaerah tersebut masih banyak orang yang bekerja di area plant tersebut. Penambahan mekanikal safety seperti relief valve tidak mungkin dipasang pada kondisi tekanan terlalu rendah untuk membuka. Yang dimungkinkan adalah penambahan alarm dan penanganannya yang mememiliki nilai PFD 001 menurut IEC 61511. Dengan penambahan alaram dan SOP penanganannya maka PFD berubah menjadi 804E-02 yang berarti menurun menjadi SIL 1. sisa PFD ini merupakan PFD target yang harus dipenuhi SIF.


ABSTRACT

Safety Instrumented System Safety Integrity Level Distillation column is a component separation based on boiling point. Boiling point of pure ethanol is 78 C while the water is 100 C standard conditions. By heating the solution at a temperature range of 78 - 100C will result in most of the ethanol evaporates and through the condensing unit will bias produced ethanol with a concentration of 95. In this final safety analysis in distillation column using Layer Of Protection Analysis Lopa. In this method allows the user to determine the risks associated with various adverse events by utilizing the severity and likelihood of events. Retrieval of the data used is P ID diagrams and data contained OREDA per component distillation column. The results of the analysis obtained PFD Lopa target entry into class no SIL 5 loops loops SIL 0 3 and SIL 2 loops 1 which means that there is only one loop which may require that the SIF loop 7. Conditions currently existing in loop 7 with a target SIL 2 the loop 7 there is no safety in the form of BPCS and mechanical safety as a relief valve for safety and there are no rules governing the prohibition of entering a dangerous area. In addition BPCS this line can not be done because the line is already used to control flow. For entry rules banning dangerous areas can not be done in the area because there are many people who work in the plant area. Additions such as mechanical safety relief valve may not be installed on the condition of the pressure is too low to open. Possible is the addition of an alarm and handling which mememiliki PFD value of 0.01 according to IEC 61 511. With the addition of handling alarms and SOP then the PFD turned into 804 E - 02 which means decreased to SIL 1. The rest of the PFD is a PFD targets to be met SIF.



KeywordsSafety Instrumented System; Safety Integrity Level
 
Subject:  Keselamatan industri; keamanan sistem
Contributor
  1. TOTOK RUKI BIYANTO, Ph.D
Date Create: 29/06/2015
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-paper-24121150007714
Collection ID: 24121150007714
Call Number: RSI 620.86 Nur i


Source
Paper and Presentations, Physics Engineering, RSF 620.86 Nur i, 2015

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Copyright @2015 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-paper-38183-2411105002_paper.pdf - 410 KB
  2.  ITS-paper-38183-2411105002-presentation.pdf - 1506 KB




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