Loss on Heat / Rolling Thin Film Oven

Loss on Heat / Rolling Thin Film Oven

Double-walled electrically heated convection oven for rolling thin film oven tests on asphalts. Incorporates all required features per ASTM specifications, including: door with double-pane viewing window; symmetrical top and bottom vents; air plenum; squirrel cage-type 1725 rpm fan; digital indicating thermostat to control oven temperature at 163°C ±0.5°C; vertical circular carriage to mechanically rotate the samples at 15±0.2 rpm; air jets to blow heated air into each sample bottle at its lowest point of travel; and a calibrated flowmeter to control air flow at 4000 mL/min. An over-temperature cut-off circuit disconnects power to the unit in the event of control failure.

$17,000.00

Description

Double-walled electrically heated convection oven for rolling thin film oven tests on asphalts. Incorporates all required features per ASTM specifications, including: door with double-pane viewing window; symmetrical top and bottom vents; air plenum; squirrel cage-type 1725 rpm fan; digital indicating thermostat to control oven temperature at 163°C ±0.5°C; vertical circular carriage to mechanically rotate the samples at 15±0.2 rpm; air jets to blow heated air into each sample bottle at its lowest point of travel; and a calibrated flowmeter to control air flow at 4000 mL/min. An over-temperature cut-off circuit disconnects power to the unit in the event of control failure.

Additional information

Test Method

Samples of asphalt or heavy oil, or residuum are dissolved in toluene at various concentrations and titrated with iso-octane or n-heptane at controlled temperatures to determine the point of flocculation (asphaltene precipitation) and calculate the Heithaus compatibility parameters. These results are intended primarily as a laboratory diagnostic tool for estimating the colloidal stability or compatibility of asphalt, asphalt cross blends, aged asphalt, pyrolyzed asphalt, crudes, and heavy oil (residuum). The stability values will allow the refiner to increase yields by allowing longer retention time in the process. The compatibility values will allow blending of crudes so as to prevent asphaltene formation during blending and storage. Both of these parameters are of utmost importance when we consider the price of crude in today's market.
Features

Complete instrument and data acquisition system
Rapid, accurate and highly reproducible
Determines blending insolubility and solubility numbers
Generates the data to calculate the WRI Coking Index (patent pending) to predict the proximity to coke formation during heavy oil distillation and improve distillate yield
Included Accessories

External Desktop PC with Data Acquisition Software
Fiber Optic Spectrometer with Multi-Bandpass Detector
High and Low Flow Rate Metering Pumps
Magnetic Stirring Plates
Programmable Circulator with External Probe to Monitor Jacket
Temperature of the Sample
Reaction Vessels
Quartz Flow Cell with Temperature Stability Feature
Glassware
Thermometer Probes
Digital Variable Sample Circulator with Built-in Reverse
Specification

Conforms to the specifications of: ASTM D6703

Temperature Range: 20 to 100°C
Electrical Requirements

115V 60Hz
220-240V 50/60Hz
Dimensions

lxwxh,in.(cm): Base/Support Assembly: 12x24x36 (30.5x61x91.4)
Net Weight: 200 lbs (90.7 kg)
Shipping Information

Shipping Weight: 312 lbs (141.5 kg)

Dimensions: 44x34x44 in. (111.8×86.4×111.8 cm)
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