摘要:
Methods of optimal refinery design utilizing a thermochemical based superstructure are provided. Methods of producing liquid fuels utilizing a refinery selected from a thermochemical based superstructure are provided. Thermochemical based superstructures are provided. Refineries are provided.
摘要:
A hydrocarbon upgrading process is described in which a hydrocarbon feed is treated in at least one of a steam cracker, catalytic cracker, coker, hydrocracker, and reformer under suitable conditions to produce a first stream comprising aliphatic and aromatic hydrocarbons. A second stream comprising C6-C9 aliphatic and aromatic hydrocarbons is recovered from the first stream and aliphatic hydrocarbons are removed from at least part of the second stream to produce an aliphatic hydrocarbon-depleted stream. The aliphatic hydrocarbon-depleted stream is then dealkylated and/or transalkylated and/or cracked (D/T/C) by contact with a catalyst under suitable reaction conditions to produce a third stream having an increased benzene and/or toluene content compared with said aliphatic hydrocarbon-depleted stream and a light paraffin by-product. Benzene and/or toluene from the third stream is then methylated with a methylating agent to produce a xylene-enriched stream.
摘要:
The invention relates to hydrocarbon conversion processes, to equipment useful in such processes, to the products of such hydrocarbon conversion processes and the use thereof, and to the use of energy derived from such processes.
摘要:
A method and system (100) is provided for continuous recycling of waste plastic feedstock into liquid fuels. The method includes sending the feedstock into a rotary retort vessel at an input end of the rotary retort vessel. The feedstock is received on either sides of a partition structure, wherein the partition structure connects the input end of the rotary retort vessel to an output end of the rotary retort vessel. The feedstock is pyrolized in the rotary retort vessel, wherein the feedstock produces gaseous byproducts and non-gaseous byproducts. The byproducts are moved towards the output end of the rotary retort vessel, wherein the movement is facilitated by declination of the rotary retort vessel and the one or more partition structures. The non-gaseous byproducts are continuously removed from the rotary retort vessel.
摘要:
A process for the production of aromatics through the reforming of a hydrocarbon stream is presented. The process utilizes the differences in properties of components within the hydrocarbon stream to increase the energy efficiency. The differences in the reactions of different hydrocarbon components in the conversion to aromatics allows for different treatments of the different components to reduce the energy used in reforming process.
摘要:
A hydrotreated liquid contains volatile hydrocarbons, hydrogen, and contaminants such as hydrogen sulfide. An inert gas, preferably nitrogen, is used to strip volatiles from the hydrotreated liquid. This stripper gas is then added to fuel gas fed to a combustion turbine, where combustibles in the fuel gas and stripper gas are combusted. The stripping is at a pressure sufficient to allow the stripper gas, now containing hydrocarbons and hydrogen, to be added to the combustion turbine fuel without additional compression. This process allows for efficient use of the stripped combustibles, and the nitrogen added to the fuel gas provides increased power generation from the combustion turbine and reduces NOx emissions.
摘要:
Deposition of ammonium chloride from a gaseous stream as it is passed through a compression means is prevented by recycling to the compression suction a sufficient amount of the compression means discharge that has been heated by the compression operation to maintain the temperature of the gaseous stream above the deposition temperature for ammonium chloride at operating pressure. The invention is particularly useful in hydrocarbon hydrogen treating processes in which hydrogen recycle streams containing ammonium chloride or ammonium chloride-forming constituents must be recompressed before recycle to the hydrogen treating process.