# US 7,744,676 B2 · TSA process > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,744,676 B2 - Document ID: US7744676B2 - Status: Granted - Kind: B2 - Application number: 11/683,588 - Filed: 2007-03-08 - Published: 2007-10-18 - Granted: 2010-06-29 - Earliest claimed: 2006-03-09 - Assignees: Linde Aktiengesellschaft - Inventors: Werner Leitmayr; Ralf Müller - Web page: https://patentgrep.com/patent/US7744676B2 ## CPC - B01D 53/0462: {Temperature swing adsorption} - B01D 2259/40007: Controlling pressure or temperature swing adsorption - B01D 2259/416: involving cryogenic temperature treatment - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract In a TSA process of an at least two-component raw gas, to adjust for fluctuation in load, the cycle time of at least one method step is extended in the event of falling below the design load value. ## Claims ### Claim 1 A method for separating a raw gas comprising at least two components by means of a Temperature Swing Adsorption process, said method comprising: at least one adsorption step and at least one regeneration step, the cycle times of the individual method steps being configured for a design load value of said raw gas, wherein the cycle time of at least one method step is extended in the event of a drop below the design load value. ### Claim 2 (depends on 1) A method according to claim 1, wherein the cycle times of all method steps are extended in the event of a drop below the design load value. ### Claim 3 (depends on 1) A method according to claim 1, wherein the extension of the cycle time of at least one method step is proportionally to the drop below the design load. ### Claim 4 (depends on 1) A method according to claim 1, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the temperature of said at least one method step. ### Claim 5 (depends on 1) A method according to claim 1, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the mass flows of said at least one method step. ### Claim 6 A method for separating a raw gas comprising at least two components by means of a Temperature Swing Adsorption process, said method comprising: at least one adsorption step and at least one regeneration step, the cycle times of the individual method steps being configured for a design load value of said raw gas, wherein the cycle time of at least one method step is extended in the event of a drop below the design load value, and wherein the extended cycle time of said at least one method step is established according to the following formula: Cycletime—cu=Cycletime—sp*F_Load*F—PT*F—OP*F_Age wherein Cycletime_cu is the cycle time to be established, Cycletime_sp is the cycle time configured for the design load, F_Load is the load, where Load is the predetermined raw gas flow rate/current determined raw gas flow rate, F_PT is the raw gas conditions, F_OP is the specification by the operating staff, and F_Age is the ageing status of the adsorbent. ### Claim 7 (depends on 6) A method according to claim 6, wherein the calculation of the cycle time of said at least one method step is carried out adaptively, the cycle time of said at least one method step being replaced by a counter state (Counterstate_sp=Cycletime_sp), and the current counter state being established according to the following formula: Counterstate_cu = ∑ i = 0 N ⁢ ⁢ F_Load i * F_PT i * F_OP i * F_Age i * F_Tr i * Δ ⁢ ⁢ t i - 1 wherein Counterstate_cu denotes the current counter state to be established, Counterstate_sp denotes the counter state configured for the design load, F_Load denotes the load (where Load=predetermined raw gas flow rate/current determined raw gas flow rate), F_PT denotes the raw gas conditions, F_OP denotes the specification by the operating staff and F_Age denotes the ageing status of the adsorbent F_Tr denotes the content of trace components and Δti-1 denotes the time difference between the last and current calculations, and where the cycle end is reached whenever: Counterstate_cu=Counterstate_sp. ### Claim 8 (depends on 6) A method according to claim 6, wherein F_PT, F_OP, and F_Age are each 0.5 to 1.5. ### Claim 9 (depends on 7) A method according to claim 7, wherein F_PT, F_OP and F_Age are each 0.5 to 1.5. ### Claim 10 (depends on 6) A method according to claim 6, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the temperature of said at least one method step. ### Claim 11 (depends on 6) A method according to claim 6, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the mass flows of said at least one method step. ### Claim 12 A method for separating a raw gas comprising at least two components by means of a Temperature Swing Adsorption process, said method comprising: at least one adsorption step and at least one regeneration step, the cycle times of the individual method steps being configured for a design load value of said raw gas, wherein the cycle time of at least one method step is extended in the event of a drop below the design load value, and wherein at least one of said components is at a concentration of less than 2 vol. % in said raw gas and is removed from the at least two-component raw gas, and the cycle time of said at least one method step is established according to the following formula: Cycletime—cu=Cycletime—sp*F_Load*F—PT*F—OP*F_Age*F—Tr wherein Cycletime_cu is the cycle time to be established, Cycletime_sp is the cycle time configured for the design load, F_Load is the load, where Load is the predetermined raw gas flow rate/current determined raw gas flow rate, F_PT is the raw gas conditions, F_OP is the specification by the operating staff, F_Age is the ageing status of the adsorbent, and F_Tr is the content of trace components. ### Claim 13 (depends on 12) A method according to claim 12, wherein the calculation of the cycle time of said at least one method step is carried out adaptively, the cycle time of said at least one method step being replaced by a counter state (Counterstate_sp=Cycletime_sp), and the current counter state being established according to the following formula: Counterstate_cu = ∑ i = 0 N ⁢ ⁢ F_Load i * F_PT i * F_OP i * F_Age i * F_Tr i * Δ ⁢ ⁢ t i - 1 wherein Counterstate_cu denotes the current counter state to be established, Counterstate_sp denotes the counter state configured for the design load, F_Load denotes the load (where Load=predetermined raw gas flow rate/current determined raw gas flow rate), F_PT denotes the raw gas conditions, F_OP denotes the specification by the operating staff and F_Age denotes the ageing status of the adsorbent F_Tr denotes the content of trace components and Δti-1 denotes the time difference between the last and current calculations, and where the cycle end is reached whenever: Counterstate_cu=Counterstate_sp. ### Claim 14 (depends on 12) A method according to claim 12, wherein F_PT, F_OP and F_Age are each 0.5 to 1.5. ### Claim 15 (depends on 13) A method according to claim 13, wherein F_PT, F_OP and F_Age are each 0.5 to 1.5. ### Claim 16 (depends on 12) A method according to claim 12, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the temperature of said at least one method step. ### Claim 17 (depends on 12) A method according to claim 12, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the mass flows of said at least one method step. ### Claim 18 (depends on 12) A method according to claim 12, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the mass flows of said at least one method step. ### Claim 19 A method for separating a raw gas comprising at least two components by means of a Temperature Swing Adsorption process, said method comprising: at least one adsorption step and at least one regeneration step, the cycle times of the individual method steps being configured for a design load value of said raw gas, wherein the cycle time of at least one method step is extended in the event of a drop below the design load value, and wherein the calculation of the cycle time of said at least one method step is carried out adaptively, the cycle time of said at least one method step being replaced by a counter state (Counterstate_sp=Cycletime_sp), and the current counter state being established according to the following formula: Counterstate_cu = ∑ i = 0 N ⁢ ⁢ F_Load i * F_PT i * F_OP i * F_Age i * F_Tr i * Δ ⁢ ⁢ t i - 1 wherein Counterstate_cu denotes the current counter state to be established, Counterstate_sp denotes the counter state configured for the design load, F_Load denotes the load (where Load=predetermined raw gas flow rate/current determined raw gas flow rate), F_PT denotes the raw gas conditions, F_OP denotes the specification by the operating staff and F_Age denotes the ageing status of the adsorbent F_Tr denotes the content of trace components and Δti-1 denotes the time difference between the last and current calculations, and where the cycle end is reached whenever: Counterstate_cu=Counterstate_sp. ### Claim 20 (depends on 19) A method according to claim 19, wherein, in the event of falling below the design load value, besides extending the cycle time of said at least one method step, a modification is carried out on the design value of the temperature of said at least one method step.