Nozzles for reduced coking and plugging in high temperature operations

A device for directing a liquid to a reactor, the device comprising:

• an inner tube positioned concentrically within an outer tube, creating a first annular space between an outer wall of the inner tube and an inner wall of the outer tube;
• and
• a first intermediate tube positioned concentrically around the outer tube, creating a second annular space, wherein:
• the first intermediate tube has a proximal end and a distal end,
• the inner tube has a proximal end and a distal end,
• the outer tube has a proximal end and a distal end,
• the proximal end of the inner tube is configured to receive the liquid,
• a portion of the first annular space in a proximity near the proximal end of the inner tube and the proximal end of the outer tube is configured to receive a first gas,
• the distal end of the inner tube contains an outlet configured to release the liquid,
• the distal end of the inner tube and the distal end of the outer tube are substantially aligned and form a gap between the outer wall of the inner tube and the inner wall of the outer tube,
• the gap is configured to direct the first gas to the liquid exiting the second end of the inner tube, and
• the second end of the outer tube terminates with a tip configured to mix the liquid with the first gas and to direct the liquid and the first gas into the reactor.