摘要:
Disclosed is a fuel processor. The fuel processor includes: a steam reformer unit configured to be disposed at an upper portion in a casing; a heat exchanger unit configured to be disposed at a lower portion of the steam reformer unit; a high temperature shift reforming unit configured to be disposed at a lower portion of the heat exchanger unit; a low temperature shift reforming unit configured to be disposed while enclosing an outer portion of the high temperature shift reforming unit; and a heat exchange chamber configured to be disposed at a lower portion of the high temperature shift reforming unit and exchange heat between reformed gas and a heat exchange fluid supplied through a channel part formed to drain the reformed gas and combustion gas and supply the heat exchange fluid.
摘要:
Honeycomb body interdigitating mixers have parallel cells extending along a common direction, the mixer comprising a first fluid path extending within a honeycomb body perpendicular to the common direction, at least a high aspect ratio portion of the first fluid path having an aspect ratio of height in the common direction to width perpendicular to the common direction and to the first path direction of at least 3:1, and a second fluid path extending perpendicular to the common direction, the second fluid also having a high aspect ratio portion having an aspect ratio of at least 3:1, wherein the first fluid path is fluidically connected to the second fluid path within their respective high aspect ratio portions via a group of apertures, the group extending in the common direction, the group of apertures taken together having a ratio of height to width of at least 3:1.
摘要:
A process and apparatus for the pyrolysis of methane into acetylene. A heat exchanger is disposed downstream of a supersonic reactor and is used to recover heat from the quenched effluent. Effluent may flow on a shell side of the heat exchanger and cooling fluid may flow on a tube side. Additionally, a separator is disposed downstream of the heat exchanger so that the effluent is capable of freely draining into the separator. The heat exchanger, separator, or both may be disposed at an angle between 20° to 90° from the horizon so that the fluid is capable of freely draining into the separator. The separator includes an outlet gas valve that may be used to control the pressure within the reactor.
摘要:
A system and method is provided for upgrading a continuously flowing process stream including heavy crude oil (HCO). A reactor receives the process stream in combination with water, at an inlet temperature within a range of about 60° C. to about 200° C. The reactor includes one or more process flow tubes having a combined length of about 30 times their aggregated transverse cross-sectional dimension, and progressively heats the process stream to an outlet temperature T(max)1 within a range of between about 260° C. to about 400° C. The reactor maintains the process stream at a pressure sufficient to ensure that it remains a single phase at T(max)1. A controller selectively adjusts the rate of flow of the process stream through the reactor to maintain a total residence time of greater than about 1 minute and less than about 25 minutes.
摘要:
A polyester production system employing a vertically elongated esterification reactor. The esterification reactor of the present invention is an improvement over conventional CSTR esterification reactors because, for example, in one embodiment, the reactor requires little or no mechanical agitation. Further, in one embodiment, the positioning of the inlets and outlets of the reactor provides improved operational performance and flexibility over CSTRs of the prior art.
摘要:
A polyester production system employing a vertically elongated esterification reactor. The esterification reactor of the present invention is an improvement over conventional CSTR esterification reactors because, for example, in one embodiment, the reactor requires little or no mechanical agitation. Further, in one embodiment, the positioning of the inlets and outlets of the reactor provides improved operational performance and flexibility over CSTRs of the prior art.
摘要:
A solution process for polymerizing one or more α-olefins of formula CH2═CHR, where R is H or an alkyl radical C1-12, to produce a polyolefin soluble in the reaction medium, the process comprising:a) polymerizing said one or more α-olefins in a solution phase in the presence of a polymerization catalyst and a inert solvent having a vapor pressure lower than 100 kPa at 20° C.; b) separating the produced polyolefin from the unreacted monomers and the inert solvent by means of a sequence of at least three volatilization chambers operating at a decreasing pressure, the second devolatilization chamber being operated at a pressure from 0.8 to 5 bar.
摘要:
The invention relates to a method of operating a high pressure ethylene polymerisation unit comprising a tubular reactor, the method characterised in that the electrical conductivity of the aqueous cooling medium is monitored in at least one location. Furthermore, the invention also covers a high pressure ethylene polymerisation unit comprising a tubular reactor, the unit characterised in that one or more cooling circuits comprise an electrical conductivity metre. The use of such a polymerisation unit is also disclosed.
摘要:
A reactor including a reactor vessel and heat exchange tubes provided in the reactor vessel. The reactor vessel includes a tubesheet and is configured to receive a reaction fluid. The tubesheet has a first plate member configured to contact the reaction fluid and a second plate member configured to not contact the reaction fluid. Heat exchange tubes are provided in the reactor vessel and fixed to the first plate member. The heat exchange tubes are configured to receive a heat exchange medium. At least a portion of the first plate member configured to contact the reaction fluid is made of a metal that has a high corrosion-resistance against the reaction liquid, and the second plate member is made of a metal that has a low corrosion-resistance against the reaction liquid. The second plate member is detachably fixed to a remainder of the reactor vessel.
摘要:
Apparatuses and methods for preparing sol-gel solutions are provided. Specifically, apparatuses include a vessel optionally containing a stirrer; a pump; a fluidized bed reaction column; and multiple fluid lines. The multiple fluid lines connect the vessel and the pump in a first circulation loop and connect the vessel, the pump and the fluidized bed reaction column in a second circulation loop. Processes for preparing sol-gel solutions using such apparatuses are also disclosed.