500 gallon Roben reactor, hastelloy C276, vertical. 48'' diameter x 57'' straight side, elliptical top and bottom. Internal rated FV/600 PSI at 350 deg. F.,2'' diameter C276 internal pipe coil rated FV/600 PSI at 350 deg. F. 316L stainless steel 1/2 pipe coil jacket rated 300 psi at 350 deg. F. Lightnin agitator, model 84-S-25, ratio 11.3 to 1, output 16-157 rpm, 25 HP motor.18'' manway, 3'' bottom outlet. Serial# 96054, National Board# 9278, built 1997.