Patent classifications
C10G9/26
Hydrocarbon conversion to ethylene
The invention relates to a hydrocarbon conversion process and a reactor configured to carry out the hydrocarbon conversion process. The hydrocarbon conversion process is directed to increasing the overall equilibrium production of ethylene from typical pyrolysis reactions. The hydrocarbon conversion process can be carried out by exposing a hydrocarbon feed to a peak pyrolysis gas temperature in a reaction zone in the range of from 850 C. to 1200 C.
Process and apparatus for converting hydrocarbons
An apparatus and process are provided for processing hydrocarbon feeds. The process enhances the conversion of hydrocarbon feeds into conversion products, such as ethylene and propylene. In particular, the present techniques utilize two high-severity pyrolysis reactors integrated with another reactor type to convert hydrocarbons to other petrochemical products. The pyrolysis reactors recycle a portion of one of the reactor products to at least one of the pyrolysis reactors to further enhance the process.
Process and apparatus for converting hydrocarbons
An apparatus and process are provided for processing hydrocarbon feeds. The process enhances the conversion of hydrocarbon feeds into conversion products, such as ethylene and propylene. In particular, the present techniques utilize two high-severity pyrolysis reactors integrated with another reactor type to convert hydrocarbons to other petrochemical products. The pyrolysis reactors recycle a portion of one of the reactor products to at least one of the pyrolysis reactors to further enhance the process.
Process and apparatus for producing olefins with heat transfer from steam cracking to alcohol dehydration process
Method of producing ethylene and, optionally, propylene by subjecting a feedstock to steam cracking to produce a first olefin containing stream; heating an ethanol containing stream with heat from a steam cracker; passing the heated ethanol containing stream over a dehydration catalyst at a temperature between 200 C to 500 C preferably 250 C to 450 C to produce a second olefin containing stream; and combining the first and second olefin containing streams to give an initial product stream containing ethylene and optionally propylene. The initial product stream is subjected to purification including at least i) water content reduction ii) hydrogen content reduction iii) reduction of content of molecules containing 4 or more carbon atoms and iv) ethane content reduction.
Process and apparatus for producing olefins with heat transfer from steam cracking to alcohol dehydration process
Method of producing ethylene and, optionally, propylene by subjecting a feedstock to steam cracking to produce a first olefin containing stream; heating an ethanol containing stream with heat from a steam cracker; passing the heated ethanol containing stream over a dehydration catalyst at a temperature between 200 C to 500 C preferably 250 C to 450 C to produce a second olefin containing stream; and combining the first and second olefin containing streams to give an initial product stream containing ethylene and optionally propylene. The initial product stream is subjected to purification including at least i) water content reduction ii) hydrogen content reduction iii) reduction of content of molecules containing 4 or more carbon atoms and iv) ethane content reduction.
Hydrocarbon Conversion to Ethylene
The invention relates to a hydrocarbon conversion process and a reactor configured to carry out the hydrocarbon conversion process. The hydrocarbon conversion process is directed to increasing the overall equilibrium production of ethylene from typical pyrolysis reactions. The hydrocarbon conversion process can be carried out by exposing a hydrocarbon feed to a peak pyrolysis gas temperature in a reaction zone in the range of from 850 C. to 1200 C.
Reactor Components
The present disclosure relates to reactor components and their use, e.g., in regenerative reactors. A process and apparatus for utilizing different wetted areas along the flow path of a fluid in a pyrolysis reactor, e.g., a thermally regenerating reactor, such as a regenerative, reverse-flow reactor, is described.
HEATER ARRANGEMENT FOR ELECTRICALLY CRACKING HYDROCARBON FEEDS FOR OLEFIN PRODUCTION
Processes and systems for converting a hydrocarbon mixture to produce olefins. The process and systems include preheating a hydrocarbon feed in one or multiple preheaters to a preheat temperature, producing a preheated hydrocarbon stream. The preheated hydrocarbon stream are separated in one or more separation systems, producing a vaporized hydrocarbon stream and a liquid hydrocarbon stream. The vaporized hydrocarbon stream is heated in a secondary transfer line exchanger, producing a heated hydrocarbon stream that is further heated in a convective electric preheater, producing a second heated hydrocarbon stream. The second heated hydrocarbon stream is then cracked, using a radiant electric thermal cracking heater, producing a cracked hydrocarbon product stream, which is fed to a primary transfer line exchanger for quenching the cracked hydrocarbon product stream and recovering a cooled hydrocarbon product stream. The cooled hydrocarbon product stream is then fed to the secondary transfer line exchanger, producing a hydrocarbon product.
HEATER ARRANGEMENT FOR ELECTRICALLY CRACKING HYDROCARBON FEEDS FOR OLEFIN PRODUCTION
Processes and systems for converting a hydrocarbon mixture to produce olefins. The process and systems include preheating a hydrocarbon feed in one or multiple preheaters to a preheat temperature, producing a preheated hydrocarbon stream. The preheated hydrocarbon stream are separated in one or more separation systems, producing a vaporized hydrocarbon stream and a liquid hydrocarbon stream. The vaporized hydrocarbon stream is heated in a secondary transfer line exchanger, producing a heated hydrocarbon stream that is further heated in a convective electric preheater, producing a second heated hydrocarbon stream. The second heated hydrocarbon stream is then cracked, using a radiant electric thermal cracking heater, producing a cracked hydrocarbon product stream, which is fed to a primary transfer line exchanger for quenching the cracked hydrocarbon product stream and recovering a cooled hydrocarbon product stream. The cooled hydrocarbon product stream is then fed to the secondary transfer line exchanger, producing a hydrocarbon product.