Lu, Jing

The present invention relates to a burner (1000) for a furnace (1900), wherein the burner (1000) comprises a first outer channel element (1110), a second outer channel element (1120), and an inner channel element (1130); wherein the first outer channel element (1110) comprises a wall (1111) defining a respective inner volume (1112) with a respective front end (1113) and a respective rear end (1114); wherein the second outer channel element (1120) comprises a wall (1121) defining a respective inner volume (1122) with a respective front end (1123) and a respective rear end (1124); and wherein the inner channel element (1130) comprises a wall (1131) defining a respective inner volume (1132); wherein the second outer channel element (1120) is inserted through the respective rear end (1114) of the first outer channel element (1110) such that the second outer channel element (1120) protrudes at least partially in axial direction through the front end (1113) of the first outer channel element (1110), such that the respective inner volume (1112) of the first outer channel element (1120) is in fluid connection with the respective inner volume (1122) of the second outer channel element (1120)to form an outer fluid channel; wherein the inner channel element (1130) is inserted through the respective rear end (1114) of the first outer channel element (1110) such that the inner channel element (1130) is arranged inside the outer fluid channel protruding at least partially in axial direction from the respective rear end (1114) of the first outer channel element (1110) and extending to the respective front end (1123) of the second outer channel element (1120) such that the inner volume (1132) of the inner channel element (1130) forms an inner fluid channel.

An apparatus (100, 200) for heating a gas is proposed, the apparatus (100, 200) comprising a heating chamber (10) and heating tubes (11, 12, 13), wherein each of the heating tubes (11, 12, 13) comprises an inlet section (11a, 12a, 13a), an outlet section (11c, 12c, 13c) and an intermediate section (11b, 12b, 13b), wherein the intermediate sections (11b, 12b, 13b) of the heating tubes (11, 12, 13) are arranged within the heating chamber (10), wherein the outlet sections (11c, 12c, 13c) of the heating tubes (11, 12, 13) are electrically interconnected by an electrically conducting interconnection (20) element, wherein the inlet sections (11a, 11b, 11c) of the heating tubes (11, 12, 13) are electrically connected to different phases (L1, L2, L3) of a multiphase electric current, and wherein the inlet sections (11a, 12a, 13a) of the heating tubes (11, 12, 13) are fluidly connected to, and electrically isolated from, upstream tube sections (11d, 12d, 13d) by electrically insulating fluid connectors (11e, 12e, 13e) providing a galvanic separation of the inlet sections (11a, 12a, 13a) of the heating tubes (11, 12, 13) and the upstream tube sections (11d, 12d, 13d). Corresponding methods are also proposed.

The invention relates to a pressure swing adsorption, PSA, plant (400a) comprising multiple PSA adsorber vessels (414, 416) at least one PSA tail gas drum (430, 432, 434, 436), and at least one skid arrangement (425), wherein each of the PSA adsorber vessels is fluidly connected or connectable, by means of the at least one skid arrangement, to the at least one PSA tail gas drum, and wherein at least one selected vessel is arranged in at least one storey other than a lowermost storey, from multiple storeys (441, 442, 443, 444) above each other, wherein the at least one selected vessel is selected from the multiple PSA adsorber vessels and the at least one PSA tail gas drum.

The invention relates to a method for operating a process plant (200), the process plant comprising one or multiple plant components (212) operated by providing electrical power received from a grid or isolated network in order to perform one or multiple processes (202), wherein the process plant (200) is configured to operate at a load up to a given maximum plant load, the method comprising: Controlling the one or at least one of the multiple processes (202) by providing electrical power to the respective plant component (212) based on variable load operating information (272), within a variable load control mode (270), and based on base load operating information (262), within a base load control mode (260), wherein, within the base load control mode, the process plant is operated at a load only up to a maximum base load, wherein the given maximum base load is less than the maximum plant load; wherein the variable load control mode (270) further comprises: Providing load availability information (272) about a currently used load at which the process plant is operating and/or about a currently available load which the process plant can in addition be operated at, preferably to a grid service provider (290); if additional load is demanded to be assigned to the process plant, Receiving load demand information (276) in response to providing the load availability information; and Adapting the variable load operating information (272) based on the load demand information (276).

A method for operating a furnace (100, 200) for performing an endothermic gas phase reaction or heating a fluid is provided, the furnace (100, 200) comprising a firebox (110) and a heat recovery duct (120), a plurality of fluid passages (101) and a plurality of firebox burners (102) being provided in the firebox (110). The method comprises passing a reaction fluid (3) through the fluid passages (101), combusting ammonia with oxygen using the firebox burners (102) to form a flue gas containing uncombusted ammonia, passing the flue gas (5) containing uncombusted ammonia from the firebox (110) towards the heat recovery duct (120), and post-combusting the uncombusted part of ammonia contained in the flue gas (5) in a post-combustion region including an outlet zone of the firebox (110) and an inlet zone of the heat recovery duct (120). A corresponding furnace (100, 200) is also provided.

The invention relates to a method for operating one or multiple compressors (110, 120, 130, 140), wherein the multiple compressors are arranged in series for compressing a fluid (a) in successive manner, in particular in order to achieve a pre-defined suction pressure upstream of the one or the most upstream one (110) of the multiple compressors, wherein for the one or each of the multiple compressors, a safety operating correlation and an optimum operating correlation are provided, wherein each of the safety operating correlation and the optimum operating correlation provide a correlation between a rotational speed of the respective compressor and a volume flow of fluid through the respective compressor, wherein each of the safety operating correlations is defined with a respective safety margin to a respective surge limit of the respective compressor, wherein each of the optimum operating correlations is shifted, with respect to the respective safety operating correlation, towards higher volume flows and/or lower rotational speeds, the method comprising, for the one or each of the multiple compressors: controlling a pressure at an inlet of the compressor by adjusting a rotational speed of the respective compressor, such that an operating point of the compressor does not go beyond a current operating correlation towards the surge limit, wherein the current operating correlation is between the respective safety operating correlation and the respective optimum operating correlation or equal to one of them

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Zusammenfassung wird geladen …

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