A conversion of approximately 90 was achieved under

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Unformatted text preview: Ibrahim and C. S. Sipaut School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: mnm@usm.my This study investigates the possibility of lignin chemically modified (CML) biopolymer as a prospective hydrocarbon drilling mud multi-functional additive. In this direction, CML was prepared using oil palm empty fruit bunch (OPEFB) fibre as a renewable biomass source. Initially, Kraft lignin (KL) was extracted by exploiting the OPEFB fibre Kraft pulping residue. The KL was then modified via polymerization reaction using p-toluenesulfonic acid (PTS) as a catalyst in the condensation process. For the application procedures, CML has been subjected to the simulated hydrocarbon drilling well conditions in order to evaluate its ability to control the drilling mud rheological properties. The evaluation process was applied by conducting the rheological testes according to the American Petroleum Institute (API) standard procedures. The CML illustrated potential viscosifying and gelling capabilities at high temperature. It’s also compatible with the existing commercial drilling mud additives and performed reasonably well with fresh and saline water based drilling mud. 117 23rd-25th June 2010 3rd ICYC 2010 Universiti Sains Malaysia IND-O5 EFFECTS OF EXTRACTION SOLVENTS ON THE CORROSION INHIBITION PROPERTIES OF MANGROVE TANNINS (RHIZOPHORA APICULATA) Kang Wei Tan and M. Jain Kassim School of Chemical Sciences, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: mjain@usm.my The objectives of this study were to investigate the correlation of phenolic compositions and corrosion inhibition properties of R.apiculata bark extracts as affected by 9 solvent systems. Several phenolic compositions, namely, total phenolic content (TPC), total flavonoid content (TFC), con densed tannin content (CTC) were investigated. In addition, the inhibitive actions of tannin extracts on mild steel in 1 M HCl solution were studied by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results showe...
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