In a furnace carbon black plant, preheated feedstock oil and quench water are injected into the reactor through atomizing nozzles. Both are high-pressure, relatively low-flow duties where stable pressure matters for consistent atomization.
Pitot tube pumps develop high head in a single stage and deliver steady, non-pulsating flow, which is why they are compared for these services.
Heavy aromatic feedstock oil is preheated to lower its viscosity and delivered to the oil injectors. Flow per reactor is modest, but pressure must stay steady for atomization and product quality.
Water sprayed into the reactor stops the reaction at the required point. Quench duties need high pressure for fine droplets at a relatively low flow.
A header serving several reactors sees demand change as units start, stop or switch grades, so the pump must hold pressure across a range of flows.
Feedstock viscosity changes strongly with temperature. Selection should use viscosity at the actual pumping temperature, plus startup and cold-oil conditions.
Particles in heavy oil can erode wetted parts. Solids content and particle size guide material choice for the rotor and pitot tube.
Dissolved solids and scaling in quench water affect wetted materials and nozzle performance over time.
For feedstock and quench service, a pitot tube pump builds pressure in one stage instead of across several impeller stages, and its steady discharge suits spray nozzles. Suitability still depends on viscosity at temperature, solids content and available suction pressure, which are checked for each duty.
Learn how pitot tube pumps work, or review the high pressure low flow pump selection data. If the installed unit is a Roto-Jet® pump, see the Roto-Jet pump replacement process and replacement parts supply.
Start with the minimum, normal and maximum flow, suction and discharge pressure, fluid, temperature and viscosity, plus the current pump model and curve if a unit is being replaced. For carbon black service, include the feedstock type, viscosity at the pumping temperature, preheat temperature, solids content, number of reactors served and the injector pressure required.
Send Operating ConditionsFeedstock injection needs high, steady pressure at a relatively low flow so the oil atomizes consistently. A pitot tube pump develops that pressure in a single stage with non-pulsating flow.
Yes, quench water is also a high-pressure, low-flow duty. Water quality, temperature and the required nozzle pressure are reviewed to select materials and confirm the operating range.
Send feedstock type, viscosity at pumping temperature, solids content, flow range per reactor, suction and injector pressure, temperature and the existing pump records.
Send your duty range, fluid data and current pump details by email or WhatsApp.