Automated liquid sampling device and automated liquid sampling system comprising same

An automated liquid sampling system comprising:

• a catalytic reactor;
• and an automated liquid sampling device that automates sampling of a liquid product of products of the catalytic reactor, wherein the catalytic reactor comprises a first catalytic reactor, wherein the first catalytic reactor comprises:
• a first reaction unit that is configured to generate the product through a catalytic reaction;
• a first trap connected to the first reaction unit to collect the liquid product;
• a second trap that is selectively connected to the first trap by a first valve configured to selectively collect the liquid product;
• a first three-way valve which forms a (1-1)th inlet, a (1-2)th inlet, and a (1-3)th inlet and connects a (1-1)th inlet-side flow channel to the first trap, wherein the automated liquid sampling device includes:
• a first pipe which is connected to a (1-2)th inlet-side flow channel and through which gas is exhausted to the outside;
• a second three-way valve which forms a (2-1)th inlet, a (2-2)th inlet, and a (2-3)th inlet, connects a (2-1)th inlet-side flow channel to a (1-3)th inlet-side flow channel, and connects a (2-2)th inlet-side flow channel to the second trap, a third three-way valve which forms a (3-1)th inlet, a (3-2)th inlet, and a (3-3)th inlet;
• a second pipe that connects a (3-1)th inlet-side flow channel to a (2-3)th inletside flow channel;
• a third pipe that connects a (3-2)th inlet-side flow channel to a (1-2)th inlet-side flow channel;
• a fourth pipe that connects a (3-3)th inlet-side flow channel to the first pipe;
• and a controller configured to control the first valve, the first three-way valve, the second three-way valve, and the third three-way valve, and
• wherein the controller is configured to open the first valve, connect the (1-2)th inlet to the (1-3)th inlet, connect the (2-1)th inlet to the (22)th inlet, and connect the (3-2)th inlet to the (3-3)th inlet such that the liquid product is configured to be collected in the second trap.