Open-system chemical kinetic high-temperature and high-pressure experimental apparatus

Abstract

The invention discloses an open-system chemical kinetic high-temperature and high-pressure experimental apparatus, comprising a cold-sealed tubular autoclave, a temperature-controlled furnace, a pressurization system, an online feeding device, an online sampling device, a multi-parameter detector, and a computer. The cold-sealed tubular autoclave is embedded within the temperature-controlled furnace and comprises a tubular vessel body with a closed lower end and a vessel cover threadedly connected thereto. The output port of the pressurization system is connected to the cold-sealed tubular autoclave. The online feeding device and the online sampling device are connected to the top and bottom of the cold-sealed tubular autoclave, respectively. The probe of the multi-parameter detector extends into the sampling bottle of the online sampling device for online detection. The computer is connected to the multi-parameter detector via a signal line. The thermocouple of the cold-sealed tubular autoclave and the temperature-controlled furnace are connected to a temperature controller. The autoclave of the invention is connected to the online feeding and discharging devices and the multi-parameter detector. During the experiment, the sample inside the autoclave is in an open, flowing state, thereby enabling the detection of kinetic processes during element migration, hydrolysis, and water / rock interactions.