Systems, lances, nozzles, and methods for powder injection resulting in reduced agglomeration

A powdered activated carbon injection unit, comprising:

• a source of the process gas;
• and
• a lance in contact with the process gas having an outer tubular member having a first end, a second end, and an inner flowpath extending from the first end to the second end;
• an inner tubular member having a first end, a second end, and a, inner flowpath extending from the first end to the second end, the inner tubular member disposed within the inner flowpath of the outer tubular member for providing an annular space between the outer tubular member and the inner tubular member;
• and one or more orifices in the inner tubular member for providing a flowpath between the annular space and the inner flowpath of the inner tubular member.

A powdered activated carbon injection unit, comprising:

• a source of the process gas;
• and
• a nozzle in contact with the process gas having a tubular member having a sealed first end, a second end, and an inner flowpath extending from the sealed first end to the second end, the tubular member having one or more orifices disposed therethrough;
• and one or more flow agitation baffles disposed a distance about the outer surface of tubular member substantially proximal to the one or more orifices.

A powdered activated carbon injection unit, comprising:

• a source of the process gas;
• and
• a nozzle in contact with the process gas having a tubular member having a sealed first end, a second end, and an inner flowpath extending from the first sealed end to the second end, the tubular member having an orifice disposed therethrough proximal to the sealed first end;
• and a dispersion plate disposed a distance about the outer surface of tubular member substantially proximal to the orifice.