摘要:
A fluid-solids contactor comprising an annular rotating fluidized bed and a method of using the same are disclosed. The fluid-solids contactor includes a vessel and a plurality feed inlets disposed thereon. The vessel comprises a stationary inner wall, an outer wall, and a chamber formed between the stationary inner wall and the outer wall. The feed inlets are configured to create an annular rotating bed with mixture of solids and a fluid when the solid particles and a fluid are fed into the chamber. The stationary inner wall of the vessel is permeable to the fluid such that the fluid from the chamber can be continuously withdrawn from the solids to the space within the stationary inner wall of the vessel.
摘要:
A reactor (12, 128, 198) and method for the conversion of hydrocarbon gases utilizes a reactor (12, 128, 198) having a unique feed assembly (58, 136, 200) with an original vortex disk-like inlet flow spaces (72, 74, 76, 80, 146, 148, 150, 152, 208, 216, 218), a converging-diverging vortex mixing chamber (116), and a cylindrical reactor chamber (40). This design creates a small combustion zone and an inwardly swirling fluid flow pattern of the feed gases that passes through a converging conduit (48) with a constricted neck portion (54). This provides conditions suitable for efficient cracking of hydrocarbons, such as ethane, to form olefins.
摘要:
A process for producing ethylene and benzene comprising introducing fuel and oxidant to combustion zone to produce combustion product; introducing first reactant mixture comprising hydrocarbons and combustion product to first reaction zone, wherein combustion product heats hydrocarbons to temperature effective for pyrolysis; allowing first reactant mixture to react via pyrolysis and produce pyrolysis product comprising unconverted hydrocarbons, C2H2, C2H4, CO, H2, H2O, and CO2; cooling pyrolysis product in quench zone to form cooled pyrolysis product; introducing cooled pyrolysis product to second reaction zone; allowing a first portion of acetylene in cooled pyrolysis product to undergo hydrogenation to ethylene and a second portion of acetylene in cooled pyrolysis product to undergo trimerization to benzene, to produce second zone effluent comprising unconverted hydrocarbons, unconverted C2H2, C2H4, C6H6, CO, H2, H2O, and CO2; and separating second zone effluent into ethylene, benzene, CO2, and syngas.
摘要:
A reactor and method for the conversion of hydrocarbon gases utilizes a reactor (12, 312, 412, 512, 612) having a unique feed assembly with an original vortex combustion chamber (40, 340, 436, 536, 636), a diverging conduit (48, 348, 448, 548, 648), and a cylindrical reactor chamber (40, 340, 436, 536, 636). This design creates a compact reaction zone and an inwardly swirling fluid flow pattern of the feed gases to form a swirling gas mixture that passes through a diverging conduit (48, 348, 448, 548, 648). The feed streams can be introduced into the reactor (12, 312, 412, 512, 612) at any angle (radial, axial, or something between, or a combination of the above forms) with swirling flow components. The feed streams comprise preheated steam and hydrocarbons for cracking. This system provides conditions suitable for efficient cracking of hydrocarbons, such as ethane, to form olefins.
摘要:
A reactor (12, 128, 198) and method for the conversion of hydrocarbon gases utilizes a reactor (12, 128, 198) having a unique feed assembly (58, 136, 200) with an original vortex disk-like inlet flow spaces (72, 74, 76, 80, 146, 148, 150, 152, 208, 216, 218), a converging-diverging vortex mixing chamber (116), and a cylindrical reactor chamber (40). This design creates a small combustion zone and an inwardly swirling fluid flow pattern of the feed gases that passes through a converging conduit (48) with a constricted neck portion (54). This provides conditions suitable for efficient cracking of hydrocarbons, such as ethane, to form olefins.
摘要:
A pyrolysis reactor (12) and method for the pyrolysis of hydrocarbon gases (e.g., methane) utilizes a pyrolysis reactor (12) having a unique burner assembly (44) and pyrolysis feed assembly (56) that creates an inwardly spiraling fluid flow pattern of the feed gases to form a swirling gas mixture that passes through a burner conduit (46) with a constricted neck portion or nozzle (52). At least a portion of the swirling gas mixture forms a thin, annular mixed gas flow layer immediately adjacent to the burner conduit (46). A portion of the swirling gas mixture is combusted as the swirling gas mixture passes through the burner conduit (46) and a portion of combustion products circulates in the burner assembly (44). This provides conditions suitable for pyrolysis of hydrocarbons or light alkane gas, such as methane or natural gas.
摘要:
A process for producing ethylene comprising introducing fuel and oxidant gas to combustion zone to produce combustion product; introducing first reactants (hydrocarbons, combustion product) to first reaction zone to produce pyrolysis product (unconverted hydrocarbons, C 2 H 2 , CO, H 2 , CO 2 , optionally C 2 H 4 ), wherein combustion product heats hydrocarbons to first temperature effective for pyrolysis; cooling pyrolysis product in quench zone to produce cooled pyrolysis product having second temperature lower than first temperature; introducing second reactants (C 2 H 6 , cooled pyrolysis product) to second reaction zone excluding catalyst to produce second product (C 2 H 4 , CO, H 2 , C 2 H 2 , CO 2 , unconverted hydrocarbons), wherein C 2 H 6 dehydrogenates to C 2 H 4 , wherein CO 2 hydrogenates to CO, wherein C 2 H 4 amount in second product is greater than in pyrolysis product, wherein second product is characterized by third temperature lower than second temperature; separating second product into C 2 H 4 &C 2 H 2 stream (C 2 H 4 , C 2 H 2 , CO, H 2 , unconverted hydrocarbons) and CO 2 stream; and recycling CO 2 stream to second reaction zone.
摘要:
Embodiments of the invention include processes for the production of C 2 hydrocarbons (C 2 H 2 and/or C 2 H 4 ) in an energy and carbon efficient process.
摘要:
Embodiments of the invention include processes for the production of C 2 hydrocarbons (C 2 H 2 and/or C 2 H 4 ) in an energy and carbon efficient process.
摘要翻译:本发明的实施方案包括用于生产C 2烃(C 2 H 2和/或C 2 H 5)的方法, 在低碳和高能效的过程中。 P>