THE Transactions of the Society of Chemical Industry (58, No. 2; 1939) contain several papers presented last November to a meeting of the Chemical Engineering Group which dealt with the industrial ...

Refinery vacuum distillation units (VDUs) use ejector systems to establish and maintain distillation-column pressure for capturing valuable crude fractions and reducing vacuum residuum. Reliable ...

In chemistry, solvents (generally in liquid form) are used to dissolve, suspend or extract other materials, typically without chemically altering either the solvent or the other materials. Solvents ...

Applications in scientific research and industrial production often require motion and positioning in a vacuum. Several factors influence the quality of the vacuum environment. One of the main ...

Distribution characteristics of crude oils and crude oil fractions, as measured by ASTM D-2892, D-5236, D-86, D-2887, and D-1160, can be accurately described by Riazi's boiling point distribution ...