| 摘要 |
<p>The 50% boiling point, the gravity and the viscosity of the waxy oil are sensed by sensors which provide corresponding signals. A computing circuit connected to the sensors provides a signal corresponding to the wax content of the waxy oil in accordance with the signals from the sensors and the following equations: (1) W=C1-C2/H+C5H C4(MW)-C5(IP)(2 IP=(?)(SG)(3) ?=¢C6(50%BP)!/MW(4) SG=C7/(A+C8)(5) H=C9log10log10(V+C10)+C11(6) MW=C12+C13A-C14K-C15(A)(K)+C16A2+C17K2(7) An alternative equation for determing the wax content is(8) W=C18-C19(SG)+C20H C21(MW) In the foregoing equations C1 through C21 are constants; having preferred values of 168.60, 41.8319, 0.08643, 0.16286, 2.6377, 0.5555, 141.5, 131.5, 870, 0.6, 154, 7955.152, 107.0542, 1768.43, 12.14112, 0.3711237, 100.1778, 257.50, 239.206, 0.078178 and 0.10354; W is the wax content of the waxy oil by percent weight, H is the Bell and Sharp viscosity blending value for the temperature at which the viscosity is measured, MW is the average molecular weight of the waxy oil, IP is the internal pressure of the waxy oil, ? is the latent heat of vaporization of the waxy oil, SG is the specific gravity of the waxy oil, A is the API gravity V is the kinematic viscosity and K is the Watson Characterization factor, and 50% BP is the 50 percent boiling point in degrees Rankin.</p> |
