CO2 pressurizing and storing device combining absorption type refrigeration and organic Rankine cycle

Abstract

The invention discloses a CO2 pressurizing and storing device combining absorption type refrigeration and organic Rankine cycle. The CO2 pressurizing and storing device comprises a CO2 pressurizing and storing part, an absorption type refrigeration part and an organic Rankine cycle part. According to the CO2 pressurizing and storing device combining absorption type refrigeration and organic Rankine cycle provided by the invention, an organic Rankine cycle system is introduced into a traditional sealing process, kinetic energy generated by a power turbine in the organic Rankine cycle system can be used for driving a compressor in the sealing process to work, so that electric energy of a power grid does not need to be consumed, and the efficiency of the sealing process is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of pressurized storage of carbon dioxide, in particular to a CO2 combined absorption refrigeration and organic Rankine cycle 2 Pressurized storage device. Background technique [0002] Carbon capture and storage technology (CO 2 Capture and Storage (CCS) is currently the main way to mitigate global warming caused by greenhouse gases, which includes three parts: separation, transportation and storage of carbon dioxide from emission sources. At present, my country's main power generation mode is thermal power. Due to its high carbon dioxide emissions, thermal power plants are considered to be one of the most suitable targets for carbon capture and storage technology. [0003] Carbon capture and storage technology can be divided into three processes: capture, transportation and storage. The storage process usually needs to compress carbon dioxide from a state close to normal pressure to an ultra-high pressur...

AI Technical Summary

Problems solved by technology

Therefore, the traditional storage process needs to consume a lot of compression work, and this part of the power consumption needs to be obtained from the power grid or other means, resulting in low efficiency and high power consumption in the whole process

In addition, in some existing technologies, carbon dioxide is directly boosted and compressed from the gaseous state to the supercritical state for storage, and the system needs to consume a lot of compression work.

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