This document outlines the key steps in sulfur handling and melting, including sulfur storage, dosing, melting, and filtration. It describes the processes of storing solid and liquid sulfur in bulk storage facilities holding up to 45,000 metric tons. The melting process involves feeding sulfur into above-ground circular tanks for efficient melting, then filtering the liquid sulfur through a leaf filter and polishing filter before storage. Safety and maintenance are prioritized through the design of equipment and facilities.

1. Sulfur handling & melting
Sebastian Brechtel
Product & Strategy Manager

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Sulfur handling and melting – process steps
10/26/20152
• Sulfur storage
• Solid sulfur dosing
• Sulfur melting
• Sulfur filtration
• Leaf filter
• Polishing / Police filter
• Liquid sulfur storage

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Sulfur Handling & Melting
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Sulfur Melting in ext. Heat Exchanger & Filtration & Storage

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Sulfur Storage
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Bulk Storage
Liquid Sulfur Storage
45,000 t

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Sulfur storage under roof recommended
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• Higher CAPEX
• Safety concept needed
• Less impact on
environment
• Minimized pollution = loss
of sulfur
• Acidity control

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Solid Sulfur-Day Bin
Features
• Bin for two sulfur melters
• Two independent discharge systems for
each melter
• High flexibility
- Adjustable sulfur feed of each
melter
• Reduced Invest cost, only one
installation
• Additional buffer capacity
• More flexibility by feeding from
storage to day bin
10/26/20156

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Solid Sulfur-Day Bin
Alternative – Payloader
• Smaller capacity plants
• Man power required
10/26/20157

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Sulfur melting and filtration
Features
• Sulfur melting tank above ground
• No pits – why?
• Dead zones in rectangular
shaped pits
• Solids settling
• No heat and mass transfer in
dead zones
• Leakages not visible
= LARGE & INEFFICIENT
10/26/20158

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Sulfur melting and filtration
Features
• Sulfur melting tank above ground
• Tanks advantages
• Circular without dead zones
• Easy to agitate well
• High efficiency mass and heat
transfer
• Easier cleaning
Efficient:
40 t/h sulfur melting in tank of
7 m diameter
4 m height
10/26/20159

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Sulfur melting and filtration
Features
• Sulfur melting tank above ground
• No pits
• Front-end loader sulfur feed or
Sulfur day bin dosing
• Good access for maintenance
• Heating coils removable or
external shell and tube heat
exchanger
• One single agitator in melter
• Leaf filter & polishing filter
10/26/201510

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Sulfur Melting Tank - Dirty Sulfur
Features
• Full drainage of the tank possible for
maintenance
• Easier removal of non-molten , un-
desired solids collected at the lowest
part of the vessel
• Better access to equipment parts
• Removable heating coils
• Carbon steel with brick-lined section
in upper part of the melter
• Natural overflow to dirty sulfur pump
tank
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M

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Sulfur Melting Tank - Dirty Sulfur
10/26/201512
Flat Bottom

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Sulfur Melting Tank
Features
• minimized number of weld seams by
bending design
• heating bundle removable from top of
melter by filled up melter
• individual replacement of each heating
coil
10/26/201513

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Sulfur Leaf Filter
Features
• Hydraulic movement of Filter Shell
• Avoiding filter cake disposals on
movement
system , Hanging shell arrangement
prefered
• Solid filter plate support system
• Personal risk elimination by disposal
opening below filter frame
• All utility and sulfur connections at
fixed head except the shell heating
device
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Police - / Polishing - Filter
10/26/201515
Features
Filter candle type
sinter material allows
high filtering efficiency,
steam and chemical
cleaning

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Ceramic vs. wounded glas fibre candles
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Pro
• Efficient
• High capacity
Con
• Cost
• Cleaning difficult
Pro
• Cost
Con
• Capacity
• Single use

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Ceramic vs. wounded glas fibre candles
10/26/201517
Design decision triggered by level of impurities

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Thank you for your attention ...