A desolidification process enables the isolation and extraction of solid additives from an unreacted petroleum residue stream. In a hydrocracking process that mixes a solid additive with a petroleum residue feedstock to convert the petroleum residue to higher-value distillates, the desolidification process enables the recovery of the unreacted petroleum residue for conversion to a saleable product. The desolidification process involves the mixture of one or more solvents with a slurry in which solids are integrated in the petroleum residue to generate a mixture having a decreased density and viscosity as compared to the slurry, which facilitates removal of the solids.

A new system in which a forward extraction part, a scrubbing part, and a backward extraction part operate together and synchronously to produce specific substances by extraction and separation in a liquid-liquid system. The aqueous phase is circulated independently only in the forward extraction part one or more times, and the organic phase is circulated from the forward extraction part through the scrubbing part and the backward extraction part to the forward extraction part again in synchronization with the liquid circulation of the aqueous phase.

Methods and systems for recovering materials from streams from processes for the co-production of propylene oxide and styrene monomer. The processes may permit the recovery of products, such a mono-propylene glycol, or the recycling of products, such as -methyl benzyl alcohol.

An extraction method is aimed at extracting an object component by transferring the object component from a first liquid containing a microorganism and the object component to a second liquid to which the object component can be transferred and that is capable of causing phase separation from the first liquid, with use of a flow channel including a merging part, a flow part, and an outlet part. The extraction method includes a step of supplying the first liquid to the merging part, a step of supplying the second liquid to the merging part, a step of passing the first liquid and the second liquid supplied to the merging part, through the flow part, in a state where a phase of the first liquid and a phase of the second liquid are separated from each other, a step of discharging the first liquid and the second liquid passed through the flow part, from the outlet part, and a step of collecting the first liquid and the second liquid discharged from the outlet part, into a collector.

Spent stillage remaining after the fermentation of a feedstock for ethanol production may be processed to recover, use, and/or recycle the constituent components of the stillage. Stillage may be mixed, heated, and held at a desired temperature for a period of time. The stillage may then be cooled and treated with an enzyme. The enzymatically treated stillage may be emulsified with oil and water, and then permitted to settle into discrete layers. Individual layers may then be processed.

Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.

The invention relates to a purification unit (200) which is able to separate crude MMA from light and heavy impurities in order to obtain high quality of MMA, suitable to produce optimal grade polymethylmethacrylate (PMMA). The unit (200) comprises two distillation columns (210, 250) in series, fed with mixture to be distilled in their median part, in order to separate each column in two upper (213, 253) and lower (212, 252) parts, the first distillation column (210) being fed with crude prewashed MMA, and the second distillation column (250) being fed with distilled liquid stream containing MMA, separated from light impurities, issued from bottom of first distillation column (210). The upper part (213) of first distillation column (210) is connected to a lateral extraction system (220), able to minimize MMA content in light impurities flowing upward said first column (210).

Methods and systems to monitor and control crude oil processing with regards to crude oil specifications for bottom sediment & water (BS&W) and salt are provided. Crude oil processing may be monitored and controlled using key performance indicators (KPIs) that include the desalter voltage and dehydrator voltage as indicators of the BS&W and salt. In response to monitoring of the desalter voltage and dehydrator voltage, a high pressure production trap (HPPT) efficiency and a dehydrator separation efficiency may be controlled via adjustment of a wash water percentage, a demulsifier dosage, a dehydrator interface level, a desalter interface level, and a differential pressure across a mixing valve.

Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.

Spent stillage remaining after the fermentation of a feedstock for ethanol production may be processed to recover, use, and/or recycle the constituent components of the stillage. Stillage may be mixed, heated, and held at a desired temperature for a period of time. The stillage may then be cooled and treated with an enzyme. The enzymatically treated stillage may be emulsified with oil and water, and then permitted to settle into discrete layers. Individual layers may then be processed.