Emissions management modules and associated systems and methods

An emissions management module for a natural gas system, comprising:

• a support structure;
• a first emissions inlet conduit supported on the support structure and configured to receive a first stream of emissions from the natural gas system;
• a second emissions inlet conduit supported on the support structure and configured to receive a second stream of emissions separate from the first stream of emissions;
• a vapor recovery unit (VRU) supported on the support structure connected to both the first emissions inlet conduit and the second emissions inlet conduit, wherein the VRU comprises a gas circulator in fluid communication with the first emissions inlet conduit and the second emissions inlet conduit;
• and
• an emissions discharge conduit connected to the VRU and configured to circulate the first stream of emissions and the second stream of emissions from the VRU such that the captured emissions are discharged directly at least one of the process suction conduit, a fuel gas system of the natural gas system, and a hydrocarbon processing component that is separate from the compressor package.

A method for capturing emissions from a compressor package of a natural gas system, the method comprising:

• (a) transporting a flow of natural gas from a process suction conduit of the natural gas system to a compressor package of the natural gas system;
• (b) increasing a pressure of the flow of natural gas received from the process suction conduit by the compressor package;
• (c) discharging the flow of natural gas from the compressor package to a process discharge conduit of the natural gas system;
• (d) capturing emissions from the compressor package by an emissions management module of the natural gas system;
• and
• (e) circulating the captured emissions by a vapor recovery unit (VRU) of the emissions management module such that the captured emissions are discharged directly to at least one of the process suction conduit, a fuel gas system of the natural gas system, and a hydrocarbon processing component that is separate from the compressor package.

A natural gas system, comprising:

• a process suction conduit;
• a compressor package connected downstream of the process suction conduit and configured to receive a flow of natural gas from the process suction conduit and to increase a pressure of the flow of natural gas whereby the flow of natural gas is discharged from the compressor package as a pressurized flow of natural gas;
• a process discharge conduit connected downstream of the compressor package and configured to receive the flow of natural gas discharged from the compressor package;
• and
• an emissions management module coupled to the compressor package and configured to capture emissions from the compressor package, wherein the emissions management module comprises a vapor recovery unit (VRU) configured to circulate the captured emissions from the VRU along an emissions discharge conduit coupled to the VRU such that the captured emissions are discharged from a gas ejector directly to at least one of the process suction conduit, a fuel gas system of the natural gas system, and a hydrocarbon processing component that is separate from the compressor package.

A natural gas system, comprising:

• a process suction conduit;
• a compressor package connected downstream of the process suction conduit and configured to receive a flow of natural gas from the process suction conduit and to increase a pressure of the flow of natural gas whereby the flow of natural gas is discharged from the compressor package as a pressurized flow of natural gas;
• a process discharge conduit connected downstream of the compressor package and configured to receive the flow of natural gas discharged from the compressor package;
• and
• an emissions management module coupled to the compressor package and configured to capture blowdown emissions from the compressor package, wherein the emissions management module comprises a vapor recovery unit (VRU) configured to circulate the captured blowdown from the VRU along a blowdown discharge conduit coupled to the VRU to a component of the natural gas system.