A SIMPLIFIED LABORATORY FLOW-RATOR

Abstract

In the investigations taken up on the Catalytic Cracking of Kerosene Oil, the authors felt the need of a laboratory flow-rator which could maintain a reasonably steady and accurate rate of flow of oil during the test run of cracking. Several types of flow-rators described in literature were examined but found unsatisfactory for the purpose. A description of a simplified and fairly accurate all-glass flow-rator of the variable area type, designed by the authors, is given in this paper. The method of calibration of the flow-rator under varying temperature conditions is given. The accuracy of the flow·rator has been verified by actual testrun results and by making a comparison of the material balance. The results indicate an accuracy within 5%.