Examples of 'used catalyst' in a sentence
Meaning of "used catalyst"
used catalyst - A substance that has undergone a chemical reaction and is no longer effective in causing or speeding up a reaction
How to use "used catalyst" in a sentence
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used catalyst
Reusing the used catalyst thus treated.
The process is especially useful in treating used catalyst.
Titanium dioxide is a widely used catalyst in photocatalytic reactions.
Steam can also be used to regenerate a previously used catalyst.
A widely used catalyst in alkylation reactions is hydrogen fluoride.
It is preferred to subject the used catalyst to distillation.
The use of used catalyst may result in cost savings.
The dichloromethane layer was evaporated under vacuum to recover the used catalyst.
In the following the used catalyst is defined in more detail.
Used catalyst from the disengaging zone is passed into a wash zone.
No further details regarding the used catalyst and external donor are given.
The mainly used catalyst is the organic metal compound alone or mixtures thereof.
Each radial reactor of the series is supplied with used catalyst from the preceding reactor.
Preferably the used catalyst is free from an external carrier.
The NMR of this material now exhibited the same peak as the used catalyst.
See also
The reactor with used catalyst was placed in the regeneration circuit.
New FCC processes comprise the use of two regeneration zones wherethrough circulates the used catalyst.
The most commonly used catalyst is a mixture of potassium chloride and aluminum chloride.
Simultaneously, the coke or carbon deposited on the used catalyst is eliminated.
The most widely used catalyst as reference in the field of polyurethanes is dibutyltin dilaurate.
Moving bed process for producing propylene, recycling a fraction of used catalyst.
This allows a portion of the used catalyst to be renewed using fresh or regenerated catalyst.
A process according to claim 1, comprising addition of fresh catalyst and extraction of used catalyst.
The used catalyst then was recharged to the reactor and fresh feed added.
Furthermore, the used catalyst may be reused.
The used catalyst will solidify when allowed to stand at room temperature for a long time.
Following impregnation, the impregnated used catalyst is then calcined by firing at an elevated temperature.
The used catalyst may either be disposed of or may be regenerated for re-use.
Run 2 was conducted at a lower temperature with a used catalyst and a longer reaction time.
In general, the used catalyst regeneration zone will function in fluidized bed mode.
The release rate can be controlled by choosing the used catalyst in the sol-gel process.
One method of recycling the used catalyst is the process called regeneration washing or rejuvenation.
AlF3, prefluorinated activated carbon or fluorinated graphite are used catalyst supports in the present invention.
The used catalyst composition comprises alumina, zinc titanate, cobalt and molybdenum.
Thereafter, the calcined, used catalyst was cooled to room temperature.
The used catalyst is regenerated and re-run in the dimerization reaction a second time.
In a follow-up, the process was repeated with the used catalyst and fresh Telone II ®.
Still further, the used catalyst is very expensive and that makes the method uneconomical.
Thus 99 % of the sulfur has been removed from the used catalyst.
The characteristics of the used catalyst described in Example 2 are also given in Table 3.
Thus volatile substances constituted 37 % by weight of the used catalyst HAS 1.
This used catalyst regeneration phase was identical in every respect to that described in Example 1.
Use in the three reactors or a precedingly used catalyst of alumina base ( curve 2 ), containing,.
Do you have a used catalyst from Vectra? Check their current value in the Opel catalog.
FIG . 4 Light-off curves for a new and a used catalyst.
After the second reaction, the used catalyst was activated by a known method Science, Vol.
The used catalyst is maintained at a temperature greater than 50°C during the impregnation.
The method of claim 1 wherein the used catalyst is heated at a temperature greater than 600°C.
The used catalyst had a characteristic powder X-ray diffraction pattern with I6/Imax of about.
Tetra ( n-butyl ) titanate ( TNBT ) is a widely used catalyst for the preparation of polybutylene terephthalate ( PBT ).
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