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INTRODUCTION

The desulphurizing process consists of a fixed-bed or batch-type granular hydrogen sulfide reactant contained in a pressure vessel. The reactant in this case is one of the granular products. Both the unused and spent product are safe and stable. During the process, gas or vapor flows through the consistently sized and shaped granular product in the bed, chemically reacting with hydrogen sulphide to form a stable and safe byproduct. The process advantage is that product consumption is dependent only on the amount of hydrogen sulfide that passes through the bed. This economically matches the need for H2S removal with variations in system flow conditions and outlet specifications, regardless of the total volume or other common components of the gas. The flexibility of the process allows the system to adapt to variations in H2S outlet specifications that may result from changes in operating preferences or tighter regulations, often without additional capital equipment or system retrofitting. Predictable pressure drops, long bed life, easy and safe handling, and a simple reliable operation are a few of the features of the desulphurizing process.