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A method of controlling a plant for processing a gas by adsorption, with N adsorbers R1 to R0 and variable N phase times. The method utilizes a mobile parameter for identifying the operating state of N adsorber which is in each successive phase time of the cycle. For a given phase time, a parameteri

A method of controlling a plant for processing a gas by adsorption, with N adsorbers R1 to R0 and variable N phase times. The method utilizes a mobile parameter for identifying the operating state of N adsorber which is in each successive phase time of the cycle. For a given phase time, a parameterized sequence (S, S′) of control steps for the plant are defined. A control sequencer of the plant is generated by matching an adsorber (R1 to R0) with each mobile parameter of the parameterized sequence during each phase time of the cycle, causing the succession of phase times of the cycle to be followed at all the adsorbers in operation.

대표청구항 ▼

A method of controlling a plant for processing a gas by adsorption, with N adsorbers R1 to R0 and variable N phase times. The method utilizes a mobile parameter for identifying the operating state of N adsorber which is in each successive phase time of the cycle. For a given phase time, a parameteri

A method of controlling a plant for processing a gas by adsorption, with N adsorbers R1 to R0 and variable N phase times. The method utilizes a mobile parameter for identifying the operating state of N adsorber which is in each successive phase time of the cycle. For a given phase time, a parameterized sequence (S, S′) of control steps for the plant are defined. A control sequencer of the plant is generated by matching an adsorber (R1 to R0) with each mobile parameter of the parameterized sequence during each phase time of the cycle, causing the succession of phase times of the cycle to be followed at all the adsorbers in operation. lly, drying the fabric. ewage sludge; about 21 wt. % to about 88 wt. % of said ammonium sulfate; about 1 wt. % to about 12 wt. % of said mineral acid; and about 0.3 wt. % to about 6 wt. % of said phosphate salt.3. The beneficiated sludge solids composition of claim 1, comprising on a water-free basis: about 25 wt. % to about 75 wt. % of said digested municipal sewage sludge; about 23 wt. % to about 73 wt. % of said ammonium sulfate; about 2.5 wt. % to about 9 wt. % of said mineral acid; and about 0.5 wt. % to about 5 wt. % of said phosphate salt.4. The beneficiated sludge solids composition of claim 1, comprising on a water-free basis: about 35 wt. % to about 70 wt. % of said digested municipal sewage sludge; about 28 wt. % to about 63 wt. % of said ammonium sulfate; about 2.5 wt. % to about 9 wt. % of said mineral acid; and about 0.5 wt. % to about 5 wt. % of said phosphate salt.5. The beneficiated sludge solids composition of claim 1, wherein the digested municipal sewage sludge is anaerobically digested.6. The beneficiated sludge solids composition of claim 1, wherein the mineral acid is at least one member selected from the group consisting of sulfuric acid and phosphoric acid.7. The beneficiated sludge solids composition of claim 1, wherein the phosphate salt is at least one member selected from the group consisting of ammonium metaphosphate (NH4PO3), ammonium monobasic phosphate (NH4H2PO4), ammonium dibasic phosphate ((NH4)2HPO4), ammonium polyphosphate ((NH4)5P3O10)), trisodium phosphate (Na3PO4), tetrasodium pyrophosphate (Na4P2O7), sodium tripolyphosphate (Na5P3O10), hexasodium hexaphosphate (Na6P6O18), potassium metaphosphate (KPO3), potassium pyrophosphate (K4P2O7), potassium monobasic phosphate (KH2PO4), potassium dibasic phosphate (KHPO4), potassium tribasic phosphate (K3PO4) and calcium superphosphate (Ca(H2PO4)2).8. The beneficiated sludge solids composition of claim 1, wherein the phosphate salt is at least one member selected from the group consisting of trisodium phosphate and sodium tripolyphosphate.9. The beneficiated sludge solids composition of claim 1, having a water content of between about 0 wt. % to about 10 wt. %.10. The beneficiated sludge solids composition of claim 1, having a water content of between about 0 wt. % to about 5 wt. %.11. The beneficiated sludge solids composition of claim 10 in granulated form.12. A beneficiated sludge solids composition characterized by its ability to reduce ammonia emissions, the composition comprising: digested municipal sewage sludge containing carbonate or carbon dioxide; ammonium sulfate; mineral acid; and phosphate salt, wherein the salt is selected from the group of trisodium phosphate or sodium tripolyphosphate; wherein the acid causes decomposition of the carbonate or carbon dioxide so that ammonia emissions are minimized. 13. The beneficiated sludge solids composition of claim 12, comprising on a water-free basis: about 10 wt. % to about 77 wt. % of said digested municipal sewage sludge; about 21 wt. % to about 88 wt. % of said ammonium sulfate; about 1 wt. % to about 12 wt. % of said mineral acid; and about 0.3 wt. % to about 6 wt. % of said phosphate salt.14. The beneficiated sludge solids composition of claim 12, comprising on a water-free basis: about 25 wt. % to about 75 wt. % of said digested municipal sewage sludge; about 23 wt. % to about 73 wt. % of said ammonium sulfate; about 2.5 wt. % to about 9 wt. % of said mineral acid; and about 0.5 wt. % to about 5 wt. % of said phosphate salt.15. The beneficiated sludge solids composition of claim 12, comprising on a water-free basis: about 35 wt. % to about 70 wt. % of said digested municipal sewage sludge; about 28 wt. % to about 63 wt. % of said ammonium sulfate; about 2.5 wt. % to about 9 wt. % of said mineral acid; and about 0.5 wt. % to about 5 wt. % of said phosphate salt.16. The beneficiated sludge solids composition of claim 12, wherein the digested municipal sewage sludge is anaerobically digested.17. T