Zero waste technology for treatment of sulfurhydrogen and mercaptan-containing APG
20EN
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Process Description Feedstock – APG is separated in separator 1 into condensate, which is removed from the plant, and separation gas. The latter is fed to unit 2, where it is treated in operating adsorber 3 to produce the desulfurized gas removed from the unit. At the same time, the adsorbent is regenerated in the adsorber 4. Regeneration occurs by purging with treated gas heated in heat exchangers 8 and 6, which is supplied from the separator 11. The resulting sour gas is sent to unit 5, where it is mixed with the supply air and subjected to selective oxidation in reactor 7. The resulting oxidation product, after cooling in the heat exchanger 8, is sent to the unit 9. Non-volatile oxidation products are absorbed by circulating oil by means of multiphase pump 10, and separated in separator 11 into treated gas and oil, the balance excess of which is discharged to oil treatment unit 12.
Process features
Adsorption-catalytic technology for removal of sulfur compounds from APG with their subsequent oxidation into low-volatile products
Block-modular configuration of equipment
Oil meets the requirements of GOST R 51858
Low capital investment and operating costs
Technical Specification
APG temperature: 35–60 °C
APG pressure: 0,005–0,55 MPa
APG capacity – up to 15 000 nm³/hour
Products: sweet APG, concentrate of oxidation products of sulfur compounds dissolved in treated oil
Patents of the Russian Federation No. 2630214, 2717667, 2740131