. Lignin from biomass waste (Black Liquor) was isolated by using sulfuric acid 25% and sodium hydroxide solutions 2N. The obtained lignin was reacted with Sodium Bisulfite to Sodium Ligno Sulfonate (SLS). he best result was achieved at 80 ° C, pH 9, ratio of lignin and bisulfite 4: 1, for 2 hours, and 290 rpm stirring rate. The result of lignin formed was sulfonated using Sodium Bisulfite (NaH…
ABSTRAK Pabrik pembuatan LPG tempat penelitian ini berlangsung dioperasikan oleh PT. ODIRA ENERJI PERSADA, terletak di lapangan minyak Babelan, Bekasi-Jakarta Timur. Permasalahan yang ada di pabrik tersebut yakni zat penyerap uap air (molekuler sieve) di unit pengering gas, setiap 1 tahun beroperasi harus diganti baru, dikarenakan beda tekanan gas masuk dan keluar (pressure drop) unit penge…
Produksi/I/2009.
Produksi/IV/2005.
Produksi/1/2012.
Manajemen pertambangan dan energi/I/2011.