Lurgi Mitsubishi Process
Process Description
Gas Cleaning Section
The SO2 gas from smelter is cleaned from the dust in the washing tower, ventury scrubber, gas cooler and mist precipitators.
01
Drying Tower and Main Gas Blower
The cleaned wet gas enters the drying tower in counter current flow with 96% sulfuric acid to capture the moisture.Then the dried gas delivered to converter area through main gas blower.
02
Converter
The dried SO2 gas is converted to SO3 by four beds of Vanadium pentaoxide (V2O5) catalyst which has overall SO2 conversion rate more than 99.8%.
03
Absorption Tower
The SO3 ga s out of the third catalyst bed is absorbed into sulfuric acid in the intermediate absorption tower (IAT). The SO3 gas out of the final catalyst bed is absorbed into sulfuric acid in the final absorption tower (FAT) to produce sulfuric acid.
04
Waste Water Treatment Plant
PT. Smelting utilizes 3 steps of waste water treatment to ensure the discharge water to the sea within the limit of stringent east java effluent standard. Gypsum product is delivered to the cement industry. Sludge cake formed in the sludge section which contains heavy metals is recycled back to the smelter.
Waste Water Treatment Plant Process
For People, Society, And The Earth
PT SMELTING
GRESIK COPPER SMELTER & REFINERY
Main Office & Plant
PO BOX 555 Roomo Village Manyar District Gresik - East Java 61151 Indonesia
+62-31-397-6450
+62-31-397-6455
Jakarta Office
Capital Place Office Tower, 3rd Floor, Unit C Jl. Jend. Gatot Subroto Kav.18 Jakarta 12710
+62-21-2793 9997, 2793 9373
+62-21-2793 9292
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