US 12,404,469 B2
Arrangement for regulation of a plant for the membrane permeation treatment of biogas
Arnaud Cerceau, Sassenage (FR)
Assigned to L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Paris (FR)
Filed by L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Paris (FR)
Filed on Sep. 8, 2021, as Appl. No. 17/469,484.
Claims priority of application No. 2009095 (FR), filed on Sep. 8, 2020.
Prior Publication US 2022/0073833 A1, Mar. 10, 2022
Int. Cl. B01D 53/22 (2006.01); B01D 53/30 (2006.01); C10L 3/10 (2006.01)
CPC C10L 3/104 (2013.01) [B01D 53/22 (2013.01); B01D 53/30 (2013.01); C10L 2200/0469 (2013.01); C10L 2290/548 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An arrangement for regulation of a plant I for the membrane permeation treatment of a feed gas stream comprising at least methane and carbon dioxide, said arrangement comprising:
at least one means A for measurement of the gross calorific value (GCV) of the feed gas stream;
at least one means B for comparison of the gross calorific value with a setpoint value E;
at least one means C for production of a control signal as a function of the comparison of the gross calorific value with the setpoint value E; and
at least one means D for transmission of this control signal, wherein the means D is capable of transmitting the control signal to a means for regulation of said plant I or to a setpoint for concentration of methane or of carbon dioxide at the outlet of the plant in the form of a second setpoint value E′,
wherein the regulation means comprises at least one compressor/backpressure valve assembly making the arrangement possible to increase or to reduce the pressure of at least one of the streams employed in the plant I,
wherein the plant I comprises at least two membrane separations,
wherein the regulation means comprises a system of valves making the arrangement possible to add at least one membrane to or to remove at least one membrane from the plant I or from at least one of the at least two membrane separations of the plant I.