(151a) Sorbent-Based Desulfurization Process for Removing Organic Sulfur Compounds

Gas treatment in oil and gas fields, refineries and chemical facilities is getting more complex due to stringent emissions requirement. While the conventional acid gas removal systems based on amine scrubbing and caustic treatment are highly effective in removing hydrogen sulfide (H₂S) and simple mercaptans, these technologies are not highly effective for complex organo-sulfur compounds such as complex mercaptans (e.g., tert-butyl mercaptan), sulfides (dimethyl sulfide, carbonyl sulfide), thiophenes (alkyl thiophenes) and disulfides (e.g., methyl ethyl disulfide).

SulfaTrap LLC is offering a new sorbent-based desulfurization processes that can remove organic sulfur contaminants from gaseous and liquid hydrocarbon streams. The paper will provide the details of the new technology and the results of large scale pilot experiments showing the capabilities of processing natural gas liquids (C3/C4 streams) as well as feedstocks that are used in the chemical synthesis of value added products. A high fidelity economic assessment will provide the processing costs for the following cases:

• Case 1- Desulfurization of Off-spec C3/C4 Streams
• Case 2 – Treatment of feedstocks