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ITS » Paper and Presentation » Teknik Material
Posted by tondoindra@gmail.com at 28/10/2015 15:44:32  •  1403 Views


PENGARUH PENAMBAHAN INHIBITOR SARANG SEMUT TERHADAP LAJU KOROSI BAJA API 5L GRADE B PADA TEMPERATUR 308304C 408304C 508304C DALAM MEDIA HCL 1M

THE EFFECT OF MYRMECODIA PENDANS INHIBITOR ADDITION ON CORROSION RATE OF API 5L STEEL GRADE B AT THE TEMPERATURE 30C40C50C IN HCL 1M

Author :
ARUMASTUTI, PUTRI ASTRINI ( 2710100033 )




ABSTRAK

Korosi adalah suatu kerusakan material yang disebabkan oleh reaksi kimia antara sebuah logam atau logam paduan yang berada di dalam suatu lingkungan. Salah satu upaya untuk mengendalikan laju korosi yang sedang marak digunakan adalah dengan menambahkan inhibitor. Tujuan dari penelitian ini yaitu untuk mempelajari pengaruh ekstrak tumbuhan sarang semut Myrmecodia pendans sebagai bioinhibitor dalam media korosif asam. Dalam penelitian ini digunakan baja karbon yang digunakan sebagai material pipelines jenis API 5L Grade B pada temperature 308304C 408304C 508304C dalam media korosif HCl 1M dengan variasi konsentrasi dari ekstrak tumbuhan sarang semut 0 mgL 100 mgL dan 500 mgL. Metode ekstraksi dari tumbuhan sarang semut menggunakan metode maserasi serbuk sarang semut dengan 80 ethanol yang kemudian diuapkan dengan rotary evaporator. Efektivitas penggunaan bioinhibitor sarang semut dalam asam diketahui melalui beberapa pengujian yaitu Uji Imersi Weight Loss Uji Electrochemical Impedance Spectroscopy dan Uji FTIR. Hasil pengujian menunjukan bahwa laju korosi tertinggi pada baja API 5L grade B ketika konsentrasi 500mgl di temperatur 308304C sebesar 3563.59mpy. Sedangkan laju korosi terendah pada baja API 5L grade B ketika konsentrasi 0mgl di temperatur 508304C sebesar 1667.93mpy. Penambahan inhibitor sarang semut mampu menurunkan laju korosi dengan membentuk lapisan tipis di permukaan logam.


ABSTRACT

Corrosion is one of material damage caused by a chemical reaction between a metal or metal alloy in a certain environment. One of the solution to control the corrosion rate that massively being used is by adding inhibitors. The purpose of this research was to study the effect of Myrmecodia pendans plants extract as a bio-inhibitor in acidic corrosive media. In this research API 5L Grade B carbon steel pipeline materials was used on the temperatures of 30 8304 C 40 8304 C 50 8304 C in medium corrosive HCl 1M with various concentration of Myrmecodia pendans 0 mg L 100 mg L and 500 mg L . The method of extraction used maceration of Myrmecodia pendans powder with 80 ethanol and then evaporated with a rotary evaporator. The Effectiveness of this bio-inhibitor in acid environment was tested with Immersion Testing Weight Loss Electrochemical Impedance Spectroscopy Testing and FTIR. The test results showed that the highest corrosion rate of steel API 5L grade B was performed at 3563.59 mpy with 500mg l concentration on the temperature of 308304C. While the lowest corrosion rate on steel API 5L grade B was 1667.93 mpy with in the 0mg l concentration at a temperature of 508304C. The addition Myrmecodia pendans inhibitors was proved to be able to reduce the corrosion rate by forming a thin layer on the metal surface.



Keywordsbio inhibitor, Myrmecodia Pendans, larutan asam, API 5L Grade B
 
Subject:  Korosi dan Anti Korosi
Contributor
  1. Prof. Dr. Ir. Sulistijono, DEA
Date Create: 28/10/2015
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-paper-27121150008019
Collection ID: 27121150008019
Call Number: RSMt 620.112 23 Aru p


Source
Paper and Presentation of Material And Metalurgy Engineering RSMt 620.112 23 Aru p, 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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