The present disclosure provides processes for converting a hydrocarbon feedstock to a hydrocarbon product stream. A process may include introducing the hydrocarbon feedstock to a reactor including a catalyst to form a reactor effluent having a temperature of from about 700 F. to about 1300 F. The catalyst may include a crystalline microporous material. The process may also include cooling the reactor effluent to a temperature of from about 350 F. to about 550 F. to form a condensate and a vapor stream. The condensate and vapor stream may be separated in a first separation system. Additionally, the vapor stream may be introduced to a second separation system to form a hydrocarbon product stream and a light hydrocarbon stream. The present disclosure also relates to apparatuses including a reactor, a vapor-liquid separator, a heat exchanger, and a separation system.

A system and method for removing organic carboxylates from a mono ethylene glycol (MEG) stream includes a reaction vessel; means for cooling and diluting the MEG stream being routed to the reaction vessel; means for acidifying the cooled and diluted MEG stream during its residence time within the reaction vessel; and means for removing an acetic-rich overhead stream from the reaction vessel. The acidification of the cooled and diluted MEG stream occurs under a vacuum. The reaction vessel may be located downstream of a calcium removal vessel and receive a filtered bottom stream from that vessel, or it may be a single reaction vessel that cycles between a calcium removal mode and an acetate removal mode, with the pressure of the single vessel being greater during the calcium removal mode than during the acetate removal mode.

Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and fluid catalytic cracking. Feeds to the mixed feed steam cracker include light products and naphtha from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline and FCC naphtha aromatics extraction zone within the battery limits.

The present invention relates to a process for oligomerization of C2- to C8-olefins in at least two reaction stages, wherein in the last distillation column the reaction mixture is fractionated such that only very small amounts of the oligomers formed remain in the distillate.

The present invention relates to a process for oligomerization of C2- to C8-olefins in at least two reaction stages, wherein in the last distillation column the reaction mixture is fractionated such that only very small amounts of the reactant olefins and the analogous alkanes remain in the bottom of the distillation column.

The present invention relates to an oil refining equipment comprising a stripping column with packing and the column has a height to diameter ratio from 0.1 to 10, from 0.5 to 5, from 1 to 4.9, from 1.4 to 4.5, from 1.6 to 2.8. It is used for degrading, decomposing or breaking down oxidation products of triglycerides, diglycerides, monoglycerides and/or fatty acids. A process for refining edible oils is described as well.

Devices, systems, and methods for forming furan based surfactants by reactive distillation are disclosed herein. Various embodiments can provide a consolidated reaction process that uses reactive distillation to synthesize oleo-furan surfactant molecules and intermediates by combining reaction and separation steps into a single reaction unit or a number of connected reaction units. The single reaction unit or a number of connected reaction units can include a catalyst bed and act to separate reaction side products at opposing ends of the unit or units.

A high-purity alcohol compound can be obtained by a method comprising passing a solution containing an ester compound and methanol and/or ethanol through a column packed with an anion exchange resin having methoxide and/or ethoxide as a counter anion to generate a methyl ester and/or ethyl ester, and distilling off the methyl ester and/or ethyl ester together with the methanol and/or ethanol.

A method for producing dimethylolbutanal, the method including: (A) distilling a raw material comprising dimethylolbutanal (DMB) in a distillation column; (B) separating the distilled raw material in the distillation column into a low boiling point component, dimethylolbutanal, and a high boiling point component; and (C) refluxing a portion or all of the high boiling point component to the distillation column by heating the portion or all of the high boiling point component, in which the dimethylolbutanal is separated from a side cut of the distillation column.

The invention pertains to a urea production process using a high pressure stripper and a low pressure decomposer connected to a low pressure carbamate condenser which is in heat exchanging contact through a wall with a sub-atmospheric decomposer wherein urea solution obtained from the low pressure decomposer is processed.