A process for recovering hydrocarbons from a slurry hydrocracking reactor. The hydrocarbons are recovered by taking a drag stream of the slurry in the reactor. After separating lighter hydrocarbons in a separation zone, the heavier hydrocarbons can be processed in a deashing zone, with a vacuum column bottoms from a separation of the effluent stream recovered from the reactor. The deashing zone can recover the heavier hydrocarbons in a deashed pitch. Additionally, a VGO rich stream from the deashing zone may be recycled back to the reactor.

In the hydrocracking process in accordance with the invention, which comprises a hydrocracking section, a high pressure hot separator and a fractionation section, upstream of the fractionation section, a stripper or reboiler column type separation column is added which treats at least a portion of the heavy effluent obtained from the high pressure hot separator. All or a portion of the bottom fraction from said column, which is rich in polynuclear aromatic compounds, is purged. At least a portion of the bottom fraction obtained from the fractionation section, which is constituted by unconverted products, is recycled to the reaction section.

Processes and systems for upgrading resid hydrocarbon feeds are disclosed. The process system may operate in two different operating modes, maximum conversion and maximum quality effluent. The process system may be reversibly transitioned between the different operating modes. The system has the ability to reversibly transition between the two modes without shutting down the system or losing production.

The present disclosure relates to a regenerated catalyst for hydrotreating heavy oil or residue oil and a preparation method thereof. More particularly, the present disclosure relates to the regenerated catalyst having excellent mechanical properties and desulfurization performance with minimal loss of active components and the method for preparing the regenerated catalyst. The regenerated catalyst can be used in place of the fresh catalyst, is excellent in economy and can reduce the environmental burden by reusing the spent catalyst to be disposed or buried.

Aging resistant emulsified asphalt compositions and related methods of preparing and applying the same for use in asphalt treatment and paving applications. The aging resistant emulsified asphalt compositions can include an aging resistant asphalt composition, emulsifier, and water. The resulting residue formed when the emulsified asphalt composition has cured is aging resistant and can be resistant to age-induced cracking even after simulated aging of 14 years and 21 years. Appropriate use of emulsifiers in some embodiments can further improve aging resistance in the residues.

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 conversion of naphtha to chemical rich reformate. Feeds to the mixed feed steam cracker include light products from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Chemical reformate from straight run naphtha streams is used as an additional feed to the aromatics extraction zone and or the mixed feed steam cracker. Feeds to the gas oil steam cracker include hydrotreated gas oil range intermediates from the vacuum gas oil hydroprocessing zone.

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 gas oil steam cracking. Feeds to the mixed feed steam cracker include one or more naphtha fractions from hydroprocessing zones within the battery limits, including vacuum residue hydrocracking, within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Feeds to the gas oil steam cracker include gas oil range intermediates from the vacuum gas oil hydroprocessing zone and the vacuum residue hydrocracking zone.

An integrated process converting crude oil to petrochemical products including olefins and aromatics, and fuel products, is disclosed. The process includes steam cracking and fluid catalytic cracking. Feed to the steam cracker include several naphtha fractions from hydroprocessing zones within the battery limits, and recycle streams from extraction zones within the battery limits.

Systems and methods are provided for forming specialty products from hydrotreated FCC fractions. Optionally, the hydrotreated FCC fractions used for forming the specialty products can further include a (hydrotreated) portion of a steam cracker tar fraction. The specialty products that can be formed from hydrotreated FCC fractions include, but are not limited to, carbon blacks, resins, and carbon fibers. A convenient method for forming the hydrotreated FCC fractions can be fixed bed hydrotreatment.

Process for the complete conversion of heavy oils into distillates, such as the vacuum residues of heavy crude oils, characterized by the simultaneous use of two separate modes of extraction of the conversion products. Alongside the current mode of recovery of the conversion products, based on the treatment of the effluent of the top zone of the reaction, a second mode is added, based on the direct extraction of liquid from the reaction zone, degassing such liquid at the same pressure as the reactor and subjecting it to vacuum extraction. The vacuum residue is recycled in the reaction. The double mode of extraction allows greatly increasing the capacity of the reactor.