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  1. Keithbowers

    Flame at flare is blue???

    A Blue flame indicates ahigh hydrogen content. Carbon in the flame incandesces during oxidation and radiates a lot of heat. Hydrogen does not glow or radiate light or heat. The blue flame is either high in hydrogen, hydrogen sulfide or methane. If hydrogen sulfide is the material, you will seea...
  2. Keithbowers

    Steam Pressure for Tracing

    Return of condensate is much more difficult with low pressure steam. Freeze ups are much more likely with 50# steam for this reason.
  3. Keithbowers

    Fuel Additives; special for gasoline

    The word 'additives' implies substances used at fractional percent of the blend. To my knowledge, there are no organic materials that are avaialbe in commercial quantities that increase the octane number of gasolines. Organo-metallic additives such as TEL and MMT work very well, but have...
  4. Keithbowers

    Lab Vacuum Distillation

    The best method today is 'simulated distillation' by gas chromatography. Both standard and 'high temperature' methods are widely used and accepted. These produce highly repeatable distillation curves quite quickly(45 min). However, they do not produce the various fractions needed for...
  5. Keithbowers

    Fuel Additive textbook or instruction

    The major additive suppliers will be estatic to provide you with all their application data. Start with Ethyl, Chevron, Shell, Lubrizol. Lots of others
  6. Keithbowers

    naphthenic acids in lube plants

    The licensors of this process have full familiarity with this type of corrosion. Furfural extraction is used in the manufacture of high quality naphthenic lubes, and naphthenic acid corrosion conditions can be expected at high enough temperatures. Alloy cladding and solid alloy internals in...
  7. Keithbowers

    Re-refining used lube oil

    Maximum allowable sulfur contents of lube base stocks are set by API standards. Group I base oils are higher than 300 PPM. Group II base oils are lower than 300 PPM. Groups III through V(hydro-cracked, PAO, and synthetic esters respectively) are also limited to 300 PPM max, but are really near...

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