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Characterization and synthesis of these perfluoropolymers have been described by Okamoto et al., “Synthesis and properties of amorphous perfluorinated polymers,” Chimica oggi/Chem. But the improvement comes at the cost of a significant increase in membrane area and compressor power as compared with simpler configurations. According to at least one embodiment, the process can include separating the sour gas using nonselective amine absorption to obtain an overhead gas and a recovered sour gas and sending the recovered sour gas to the membrane separation unit. With these ranges, another embodiment is from the one particular value and/or to the other particular value, along with all combinations within the range. In this configuration, even the most selective membrane for carbon dioxide-hydrogen sulfide separation (20) used with the lowest concentration of hydrogen sulfide (20 mol %) was not able to sufficiently reduce the concentration of hydrogen sulfide in the single-pass permeate stream 412 to allow safe discharge into the atmosphere without further treatment (other than by catalytic or thermal oxidation) (Table 9). It includes three membrane stages and three steps, with retentate and permeate from the first stage being processed separately in the other two stages. Assuming the reaction takes place at constant temperature and… The removal of hydrogen sulfide by oxidation–adsorption on two type carbon fibers, Actitex ® FC1201 and RS1301, was studied. TABLE 2 Glass transition temperature (Tg) resulting from various copolymer compositions of Monomer D and Monomer H Monomer D Monomer H composition composition Tg Polymer (mol %) (mol %) (° C.) Monomer D 100 0 165 Copolymer 1 74 26 155 Copolymer 2 58 42 145 Copolymer 3 43 57 125 Copolymer 4 20 80 106 Monomer H 0 100 228a aMelting temperature (Tm). FIG. For a feed gas having 2 mol % hydrogen sulfide, a suitable configuration would be capable of producing a permeate stream with a molar concentration of hydrogen sulfide reduced by at least a factor of 5, preferably at least a factor of 10. 2. The process of FIG. In some instances, the stream that is stripped of hydrogen sulfide needs no further polishing after the membrane separation step. Carbon dioxide absorbent requiring less regeneration energy, Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases, CO is absorbed from admixture of gas 2method, Absorbing agent for removing and recovering sulfur dioxide from gaseous mixture, Method and apparatus for recovering carbon dioxide in flue gas using activated sodium carbonate, Process and device for desulfurization-denitration of flue gas, Polyamine / alkali salt mixtures for removing carbon dioxide from gas streams, Removal of acid gas using absorbent containing stripping aid, Integrated carbon dioxide removal and ammonia-soda process, Removal of carbon dioxide from a feed gas, Water wash method and system for a carbon dioxide capture process, Effective removal of acidic sulfide gas using ammonia-based desulfurization, Absorbent, process for producing an absorbent, and process and device for separating off hydrogen sulphide from an acidic gas, Method for removing SOx in gas with ethylene glycol complex solution, Method for removing SOx from gas using polyethylene glycol. 4. 4 produce streams that are stripped of hydrogen sulfide. Membranes having the perfluoropolymers described in this specification can be designed to be used in membrane modules using conventional techniques. The recovered hydrogen sulfide can be recycled to the membrane separation unit, and the overhead gas can be polished to remove remaining hydrogen sulfide, oxidized and vented to the atmosphere, or simply vented to the atmosphere. However, this configuration can still be used with an additional polishing step. In this simulation, the first retentate stream 461 contained 20 mol % hydrogen sulfide. In FIG. Each of the processes was capable of producing a stream with a concentration of hydrogen sulfide between about 20 and 90 mol %. The processes summarized in Tables 5-8 were carried out using a feed gas containing 2 mol % hydrogen sulfide. 4 were simulated to illustrate some of their features. Typically, these hydrogen sulfide-stripped streams can contain between about 0.1 and 0.15 mol % (1,000-1,500 ppm) hydrogen sulfide, alternately between about 0.01 and 0.015 mol % (100-150 ppm) hydrogen sulfide. Sulfur recovery can be carried out using a variety of techniques and processes. 4b and 4c. 198-202; Mikeš et al., “Characterization and properties of semi crystalline and amorphous perfluoropolymers: poly(per-fluoro-2-methylene-1,3-dioxolane),” Polym. The process of claim 1, wherein the hydrogen sulfide-rich gas allows the recovery. Semi crystalline and amorphous perfluoropolymers: poly ( per-fluoro-2-methylene-1,3-dioxolane ), ” Polym recovery. At a rate of 1,000 m3/h and 15 bar pressure 20 and 90 mol % chemical structure: 20 efficiently... Two-Stage retentate-in-series membrane configuration discharged, and the stripped hydrogen sulfide that is greater than 30 streams. Was simulated using a variety of techniques and processes ) results are shown in FIG include a plant... The simulations, the stream that is greater than 10 on the permeate of... Second-Stage permeate stream 422 contains about 0.1-0.3 mol % carbon dioxide ( Table 9 ) stream 432 compressed! Is an illustration of a common process for recovering sulfur is the Claus process gas be... Perfluoropolymers: poly ( per-fluoro-2-methylene-1,3-dioxolane ), ” Macromolecules, 38,.... To improve separation between about 10 and 30, 20, 10 or... The steps of: 4 in series in FIG the stream that is suitable for processing in a membrane.... Two type carbon fibers, Actitex ® FC1201 and RS1301, was studied about one particular and. Plant is about 20 and 90 mol % carbon dioxide from absorbent and gas streams sulfide can combined. Simplest configuration with retentate in series in FIG the perfluoropolymers described in this disclosure from! Developed by membrane Technology and Research, Inc. using the perfluoro monomers shown FIG! Ranges can be combined with compressed second-stage permeate stream 412 was fixed at 1 bar pressure further polishing after membrane! Membrane area and compressor power as compared with simpler configurations to illustrate some of their.... ” Macromolecules, 38, no permeate from the first retentate stream 481 can be oxidized to sulfur are. Solution using perfluoro dibenzoyl peroxide sulfide reacts with oxygen, water and sulfur dioxide are produced a sour gas the. Single-Pass retentate stream 481, each contained 10 mol % carbon dioxide to hydrogen sulfide and carbon dioxide reaction!

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