IntraMicron Desulfurization Technology Suite for the Efficient Removal and Recovery of Sulfur from Gas-Phase Energy Resources

H. Yang, P.S. Dimick, B.J. Tatarchuk
IntraMicron Inc., US

Keywords: desulfurization, oxidative sulfur removal, bed life sensor, catalyst, adsorbent

Summary:

The IntraMicron Desulfurization Technology Suite (IM-DTS) is an innovative sulfur removal and recovery system that was developed to address the current need for scalable desulfurization technology. IM-DTS is the synergistic combination of a selective catalytic oxidative sulfur removal (OSR) stage that transforms up to 99% of sulfur contaminants into elemental sulfur and a downstream polishing adsorbent bed equipped with an in-situ bed-life capacity sensor (BLS) that enables optimal adsorbent bed operation and cycling (Figure 1). The elemental sulfur produced by the OSR stage is recovered as a usable byproduct. IM-DTS targets small-scale gas-phase resources that cannot be economically desulfurized by current technology. Compared with traditional desulfurization approaches, IM-DTS provides the following advantages: up to a 65% reduction in desulfurization cost, up to a 31- fold reduction in reactor volume, up to a 85-fold reduction in solid waste generation, high selectivity and yield to elemental sulfur formation, and easily accommodates varying H2S levels. IM-DTS is compatible with numerous feedstocks including but not limited to natural gas, biogas, landfill gas, frac gas, petroleum gas, refinery off gas, flare gas, syngas, as well as gasified biomass, coal, and municipal solid waste (MSW).