摘要:
An elastomer rheology process can include: receiving material formation data associated with an elastomer; conveying the elastomer towards one or more rollers that compress and stretch the elastomer according to a predetermined rolling profile comprising roller gap and speed settings; sensing a first dimension of a first portion of the elastomer before the first portion of the elastomer is passed through the sheeter; sensing a second dimension of a second portion of the elastomer after the second portion of the elastomer is passed through the sheeter; and calculating an elastomer property of the elastomer based on the controlled roller gap width, a measured roller force, the first dimension, and the second dimension.
摘要:
The invention is directed to a process and to an apparatus for saving fuel in furnaces for thermal dissociation of halogenated aliphatic hydrocarbons, especially of 1,2-dichloroethane, using chemical dissociation promoters or physical measures which initiate the dissociation reaction.The initiation of the dissociation reaction lowers the temperature level in the reaction mixture with the same conversion. This can also lower the mean firing chamber temperature and save fuel.In a preferred process variant, flue gas leaving the convection zone of the dissociation oven is analyzed and its dew point is calculated. The dew point of the flue gas or the conversion of the dissociation reaction serves as command parameter for the intensity of the physical measure for initiation and/or for the amount of the chemical dissociation promoter added and/or for the amount of fuel.In a further preferred process variant, the latent heat content of the flue gas is used to preheat the burner air or other media.
摘要:
A process for the regeneration of a catalyst is presented. The catalyst is in a reactor for use in benzene alkylation, and periodically needs to be regenerated. The reactor is taken off-line, and a regenerant is passed through the reactor, producing an effluent stream. A portion of the effluent stream is recycled through the reactor without passing through a clean-up process.