US 2024/0189758 A1Published application

Gas treatment process and process arrangement

AssigneeLinde Aktiengesellschaft

InventorsFlorian DEICHSEL, Thomas RIED, Gabriel SALAZAR DUARTE, Martin POTTMANN, Verena KRAMER, Emilie DUVAL, Georg FÖRSTER

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Abstract

The present invention proposes a gas treatment process in which a process arrangement comprising three process units is used, the gas treatment process comprising subsequently operating a different one of the three process units in a heating mode during a heating phase, the heating mode comprising heating a first gas stream to a first temperature level using a first heat exchanger, introducing the first gas stream at the first temperature level to the process unit which is operated in the heating mode, withdrawing a second gas stream from the process unit which is operated in the heating mode, and thereafter cooling the second gas stream to a second temperature level using a second heat exchanger.

Claims13

Dependent claims

A gas treatment process in which a process arrangement comprising three process units is used, the gas treatment process comprising

subsequently operating a different one of the three process units in a heating mode during a heating phase, the heating mode comprising heating a first gas stream to a first temperature level using a first heat exchanger, introducing the first gas stream at the first temperature level to the process unit which is operated in the heating mode, withdrawing a second gas stream from the process unit which is operated in the heating mode, and thereafter cooling the second gas stream to a second temperature level using a second heat exchanger,
wherein
the first heat exchanger and the second heat exchanger are operated in fluidic integration into a heat transfer arrangement operated using a heat transfer fluid, the heat transfer arrangement further comprising a heat transfer fluid heater, a first buffer vessel, a heat transfer fluid cooler and a second buffer vessel,
an outlet of the heat transfer fluid heater being operated in permanent fluidic connection with an inlet of the first buffer vessel, an outlet of the first buffer vessel being operated in permanent fluidic connection with an inlet of the first heat exchanger, an outlet of the heat transfer fluid cooler being operated in permanent fluidic connection with an inlet of the second buffer vessel, and an outlet of the second buffer vessel being operated in permanent fluidic connection with an inlet of the second heat exchanger,
in a first connection mode an outlet of the first heat exchanger is operated in temporary fluidic connection with an inlet of the heat transfer fluid heater while an outlet of the second heat exchanger is operated in temporary fluidic connection with an inlet of the heat transfer fluid cooler, and
in a second connection mode the outlet of the first heat exchanger is operated in temporary fluidic connection with the inlet of the heat transfer fluid cooler while an outlet of the second heat exchanger is operated in temporary fluidic connection with an inlet of the heat transfer fluid heater.

3 more elements

A process arrangement adapted to perform a gas treatment process, the process arrangement comprising a process unit, a first heat exchanger adapted to heat a first gas stream to a first temperature level, means adapted to introduce the first gas stream at the first temperature level to the process unit, means adapted to withdraw a second gas stream from the process unit, and a second heat exchanger adapted to cool the second gas stream (2) to a second temperature level where a heat transfer arrangement is provided into which the first heat exchanger and the second heat exchanger are fluidly integrated, the heat transfer arrangement being operable using a heat transfer fluid, the heat transfer arrangement further comprising a heat transfer fluid heater, a first buffer vessel, a heat transfer fluid cooler and a second buffer vessel, an outlet of the heat transfer fluid heater being permanently fluidly connected with an inlet of the first buffer vessel, an outlet of the first buffer vessel being permanently fluidly connected with an inlet of the first heat exchanger, an outlet of the heat transfer fluid cooler being permanently fluidly connected with an inlet of the second buffer vessel, and an outlet of the second buffer vessel being permanently fluidly connected with an inlet of the second heat exchanger, wherein means are provided to select either one of a first connection mode and a second connection mode, wherein in the first connection mode an outlet of the first heat exchanger is temporarily fluidly connected to an inlet of the heat transfer fluid heater while an outlet of the second heat exchanger is temporarily fluidly connected to an inlet of the heat transfer fluid cooler and wherein in the second connection mode the outlet of the first heat exchanger is temporarily fluidly connected to the inlet of the heat transfer fluid cooler while an outlet of the second heat exchanger is temporarily fluidly connected to an inlet of the heat transfer fluid heater.

Dependencies are inferred from the claim text.