Equipment and method for evaluation of the tendency to foam formation in diesel oil and process for determining the effectiveness of an antifoam additive for diesel.

摘要

Equipment and method for evaluation of the tendency to foam formation in diesel oil and process for determining the effectiveness of an antifoam additive for diesel oil.It is described an apparatus (100) for the evaluation of the tendency to foam formation in diesel oil which comprises a cell compression (16) for containing the diesel oil in the test.With the filling system, and a photocell (17) for measuring the volume of oil.The cell (16) being pressurized by the pressurization system to give pressure to the said oil; a cylinder (20) receiving the diesel oil for test of foam.The cell compression (16) and a cylinder (20) being connected by a tube (19), u; and electronic circuit to perform operations of pressure testing, comparison of information and commands in general.The method for use of the equipment (100) comprises compressing the diesel oil in the test with air in the cell compression up to 400 mbar, and transfer to the cylinder (20).Where are determined the height of the foam formed and the time of extinction of the foam layer.The process to determine the effectiveness of an antifoam additive for diesel oil with the aid of equipment (100) involves determining.For a commercial diesel oil added with the antifoam in test, the height of the foam and the time of extinction of the same, and compare with the information supplied by the manufacturer.