Systems, assemblies, and methods for pyrophoric material extraction

A method to enhance extraction of pyrophoric catalyst from a refinery apparatus, the method comprising:

• supplying a pressurized fluid to a plurality of vacuum generators;
• generating, via the plurality of vacuum generators using the pressurized fluid, a vacuum flow;
• associating a manifold with the refinery apparatus, the manifold providing a flow path for the vacuum flow;
• extracting pyrophoric catalyst from the refinery apparatus via the vacuum flow through the manifold to a material collector through which the vacuum flow passes, depositing at least a portion of the extracted pyrophoric catalyst in the material collector;
• passing the vacuum flow into a sound attenuation chamber to reduce a sound level generated by one or more of the vacuum flow or generating the vacuum flow;
• and
• one or more of:
• supplying one or more of inert gas or a cooling medium to the material collector;
• or
• supplying one or more of inert gas or a cooling medium to the sound attenuation chamber.

An extraction assembly to enhance extraction of pyrophoric catalyst from a refinery apparatus, the extraction assembly comprising:

• a vacuum source including a plurality of vacuum generators, each of the plurality of vacuum generators being positioned to cause a vacuum flow between the refinery apparatus and the vacuum source;
• a material collector including an interior positioned for receipt of the vacuum flow and to collect at least a portion of pyrophoric catalyst in the vacuum flow;
• and
• an inert gas conduit positioned to supply inert gas from a source of inert gas to the interior of the material collector.