Method and apparatus for producing high purity phosgene
First Claim
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1. A tube reactor comprising:
- a shell and a tube located within the shell, with a cooling medium between the shell and the tube,the tube having a particulate catalyst effective to convert carbon monoxide and chlorine to phosgene disposed therein,wherein a thermally conductive material separate from the tube contacts at least a portion of the particulate catalyst; and
wherein the tube reactor is configured such that the peak temperature in the reactor is less than 800°
C.;
wherein the tube reactor has a heat transfer area per unit volume of 500 to 10,000 m2/m3.
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Abstract
In an embodiment, a method of producing phosgene in a tube reactor comprises introducing a feed comprising carbon monoxide and chlorine to a tube of the reactor, the tube having a particulate catalyst disposed therein, wherein a thermally conductive material separate from the tube contacts at least a portion of the particulate catalyst; to produce a product composition comprising phosgene, and carbon tetrachloride in an amount of 0 to 10 ppm by volume based on the volume of the phosgene.
33 Citations
20 Claims
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1. A tube reactor comprising:
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a shell and a tube located within the shell, with a cooling medium between the shell and the tube, the tube having a particulate catalyst effective to convert carbon monoxide and chlorine to phosgene disposed therein, wherein a thermally conductive material separate from the tube contacts at least a portion of the particulate catalyst; and wherein the tube reactor is configured such that the peak temperature in the reactor is less than 800°
C.;wherein the tube reactor has a heat transfer area per unit volume of 500 to 10,000 m2/m3. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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7. A tube reactor comprising:
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a shell and a tube located within the shell, with a cooling medium between the shell and the tube, the tube having a particulate catalyst effective to convert carbon monoxide and chlorine to phosgene disposed therein, wherein a thermally conductive material separate from the tube contacts at least a portion of the particulate catalyst; and wherein the tube reactor is configured such that the peak temperature in the reactor is less than 800°
C.;wherein the catalyst varies in concentration, activity, or both from a feed end of the tube to an outlet end of the tube, wherein the variance is from low activity, concentration, or both at the feed end to relatively higher concentration, activity, or both, at the outlet end. - View Dependent Claims (8)
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Specification