System for separating gas

A system for separating a gas from a process stream, the system comprising:

• a reactor configured to carry out a chemical process yielding the process stream, the process stream comprising substantially only methanol, CO2, and water;
• a fractionation unit configured to receive the process stream from the reactor, the fractionation unit comprising at least one heat exchanger located at an overhead portion of the fractionation unit and receiving a portion of the process stream from the overhead portion of the fractionation unit, the at least one heat exchanger being configured for condensing the portion of the process stream;
• and
• at least one stripper unit located at the overhead portion of the fractionation unit and configured to receive the condensed portion of the process stream after the at least one heat exchanger and being configured for removing the gas from the condensed portion of the process stream by introducing at least one stripping fluid thereunto;
• and
• a reflux drum connected to the fractionation unit and configured to accumulate the condensed portion of the process stream and to return a portion of the accumulated condensed portion of the process stream to the fractionation unit;
• the at least one stripper unit is a gas sparger unit;
• the gas sparger unit and the reflux drum are integrally formed, the gas sparger unit being configured to introduce the at least one stripping fluid into the accumulated process stream within the reflux drum.

A system for separating a gas from a process stream, the system comprising:

• a reactor producing the process stream;
• a fractionation unit configured to receive and separate components of the process stream and comprising a heat exchanger at an overhead portion of the fractionation unit, the heat exchanger being configured to condense a portion of the process stream;
• and
• a stripper unit configured to introduce at least one stripping fluid to the condensed portion of the process stream.