A method and system for separating light hydrocarbons are disclosed, wherein the method comprises compression, cooling, absorption, desorption, rectification, cracking, and recycling cracked gas to the compression step.

An electric cracking furnace system for converting a hydrocarbon feedstock into cracked gas includes a mixing device for mixing hydrocarbon feedstock with slightly superheated and/or saturated steam. The system includes a steam drum, an electric furnace, a primary transfer line exchanger (PTLE), a secondary transfer line exchanger (STLE), and a tertiary transfer line exchanger (TTLE). The electric furnace includes a feed inlet for a hydrocarbon feedstock-saturated steam mixture and an outlet for a cracked gas. The steam drum includes a saturated steam outlet connected to the mixing device, and a water outlet and a steam inlet both connected to the STLE. The PTLE is configured to preheat the hydrocarbon feedstock-saturated steam mixture before entry into the electric furnace and to cool the cracked gas provided by the electric furnace. The STLE is configured to generate steam and to cool the cracked gas provided by the PTLE.

The invention provides methods for treating a source oil phase consisting of heavy oil, bitumen, a mixture of heavy oil and bitumen, a mixture of solvent and heavy oil or bitumen or both. The method comprises: introducing the source oil phase to a heated lower section of a device to provide an interior source oil phase; heating the interior source oil phase so as to thermally separate a light oil phase component therefrom and provide a vaporized light oil; and condensing the vaporized light oil phase on one or more internal cooling fins housed within the upper section of the device, to provide a condensed light oil phase liquid, wherein the internal cooling fins are angled so as to direct the condensed light oil phase liquid downwardly to a light end collection system.

The invention provides methods for treating a source oil phase consisting of heavy oil, bitumen, a mixture of heavy oil and bitumen, a mixture of solvent and heavy oil or bitumen or both. The method comprises: introducing the source oil phase to a lower reservoir section of a device, flowing the source oil phase through an array of vertically extending heated pipes with an inert gas so as to thermally separate a vaporized light oil phase component from a heated liquid source oil phase, and segregating fluid flows by density in an upper fluid separating manifold to provide a light product fluid and a heavy product fluid.

Embodiments disclosed herein relate to systems and processes for producing olefins and/or dienes. The systems and processes may include thermally cracking a C1-C4 hydrocarbon containing feed to produce a cracked hydrocarbon effluent containing a mixture of olefins and paraffins. The systems and processes may also include dehydrogenating the cracked hydrocarbon effluent to produce a dehydrogenated hydrocarbon effluent containing additional olefins and/or dienes.

Embodiments disclosed herein relate to systems and processes for producing olefins and/or dienes. The systems and processes may include thermally cracking a C1-C4 hydrocarbon containing feed to produce a cracked hydrocarbon effluent containing a mixture of olefins and paraffins. The systems and processes may also include dehydrogenating the cracked hydrocarbon effluent to produce a dehydrogenated hydrocarbon effluent containing additional olefins and/or dienes.

The invention relates to a method (100) for the recovery of a separation product which contains predominantly hydrocarbons with two carbon atoms, with the use of a separation feedstock which contains predominantly methane, hydrogen and hydrocarbons with two carbon atoms, wherein the methane content of the separation feedstock is up to 20%, and the separation feedstock is provided in a gaseous state. It is provided that, at a first pressure level, the separation feedstock is partially condensed in a single step by cooling from a first temperature level to a second temperature level, thereby obtaining precisely one first liquid fraction and precisely one first gaseous fraction; at least one part of the first gaseous fraction is partially condensed in a single step through further cooling from the second temperature level to a third temperature level, thereby obtaining precisely one second liquid fraction and precisely one second gaseous fraction; at least one part of the second gaseous fraction at the second pressure level is subjected to a contraflow absorption in the contraflow to an absorption liquid containing predominantly methane, thereby obtaining precisely one third liquid fraction and precisely one third gaseous fraction; the first, the second and the third liquid fraction are at least partially combined and, at least partially, at a second pressure level above the first pressure level, subjected to a low-temperature rectification, thereby obtaining a sump liquid and an overhead gas; at least one part of the overhead gas at the second pressure level is partially condensed in a single step through further cooling from the second temperature level to the third temperature level, thereby obtaining a fourth liquid fraction and a fourth gaseous fraction; and the absorption liquid containing predominantly methane is formed through further cooling of at least a part of the fourth gaseous fraction to a fourth temperature level. A corresponding plant also forms the subject matter of the invention.

The invention relates to hydrocarbon conversion, to equipment and materials useful for hydrocarbon conversion, and to processes for carrying out hydrocarbon conversion, e.g., hydrocarbon pyrolysis processes. The hydrocarbon conversion is carried out in a reactor which includes at least one channeled member that comprises refractory and has an open frontal area≤55%. The refractory can include non-oxide ceramic.

Methods and systems for improving energy conversion from the heat available in a hydrocarbon feedstream during the production of olefins. In a particular non-limiting embodiment, a method can include increasing the temperature of a hydrocarbon feedstream and a hydrogen gas feedstream via a first heat exchanger; combining and feeding the feedstreams into a reactor to produce a reactor effluent including one or more olefins; expanding the reactor effluent in a reactor effluent expander to decrease the pressure and/or temperature of the reactor effluent; transferring the reactor effluent to the heat exchanger to increase the temperature of the feedstreams and/or decrease the temperature of the reactor effluent; and compressing the reactor effluent in a compressor, where the expansion of the reactor effluent drives the compressor.

Methods are provided to use water-free quench liquids to obtain pyrolytic liquid products with reduced formaldehyde content. Products include liquids with improved hydroxyacetaldehyde content.