Low pressure drop reforming reactor
First Claim
1. ) A syngas reforming exchanger comprising:
- a vessel comprising an elongated shell having relatively high and low temperature ends;
a shell side fluid inlet adjacent the high temperature end for receiving a hot gas feed;
a tube side fluid inlet adjacent the low temperature end for receiving a reactant feed gas;
a shell side fluid outlet fluidly isolated from the tube side fluid inlet by a tube sheet adjacent the low temperature end for discharging cooled gas;
a tube bundle comprising a plurality of tubes, one or more longitudinally-spaced transverse ring baffles, and one or more longitudinally-spaced tube guides, wherein the tubes have an inlet end secured to the tube sheet for receiving the feed mixture and an outlet end adjacent the shell side fluid inlet for discharging product gas into the hot gas feed to form a gas mixture;
a longitudinal shell-side flow path for the gas mixture through the tube bundle;
a heat resistant refractory lining affixed to an interior surface of the shell about the tube bundle; and
a discharge annulus, defined between an imperforate flow sleeve disposed about the tube bundle and an enlarged end of the shell adjacent the shell-side fluid outlet, in fluid communication between the shell-side flow path and the shell-side fluid outlet, wherein the flow sleeve has an open end spaced between the tube sheet refractory lining and the shell-side fluid outlet, and a sealed end forming a seal with the shell refractory lining at a base of the discharge annulus.
2 Assignments
0 Petitions
Accused Products
Abstract
A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle, and a flow sleeve in an enlarged-diameter discharge annulus at an upper end adjacent the tube sheet to prevent short-circuiting of the shell-side fluid into the shell-side fluid outlet. The tube bundle can include a plurality of ring baffles and lattice baffles. The longitudinal flow configuration can provide a lower shell-side pressure drop and lower cost compared to a conventional cross-flow reforming exchanger
25 Citations
18 Claims
-
1. ) A syngas reforming exchanger comprising:
-
a vessel comprising an elongated shell having relatively high and low temperature ends; a shell side fluid inlet adjacent the high temperature end for receiving a hot gas feed; a tube side fluid inlet adjacent the low temperature end for receiving a reactant feed gas; a shell side fluid outlet fluidly isolated from the tube side fluid inlet by a tube sheet adjacent the low temperature end for discharging cooled gas; a tube bundle comprising a plurality of tubes, one or more longitudinally-spaced transverse ring baffles, and one or more longitudinally-spaced tube guides, wherein the tubes have an inlet end secured to the tube sheet for receiving the feed mixture and an outlet end adjacent the shell side fluid inlet for discharging product gas into the hot gas feed to form a gas mixture; a longitudinal shell-side flow path for the gas mixture through the tube bundle; a heat resistant refractory lining affixed to an interior surface of the shell about the tube bundle; and a discharge annulus, defined between an imperforate flow sleeve disposed about the tube bundle and an enlarged end of the shell adjacent the shell-side fluid outlet, in fluid communication between the shell-side flow path and the shell-side fluid outlet, wherein the flow sleeve has an open end spaced between the tube sheet refractory lining and the shell-side fluid outlet, and a sealed end forming a seal with the shell refractory lining at a base of the discharge annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification