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US 11,255,242 B2Granted
System and process for delivering controlled quantities of ammonia to ammonia-consuming devices
AssigneeExxonMobil Chemical Patents Inc.
InventorsMark A. Rooney, Venkatesh Subramania, Robert C. Thiets
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Abstract
Centralizing the handling and manipulating of vaporization medium to a single subsystem that supplies multiple ammonia vaporizers allows for efficient and effective production of a corresponding vaporized ammonia stream containing a controlled quantity of ammonia. These vaporized ammonia streams can then be used in conjunction with ammonia-consuming devices to reduce NOx in NOx-containing exhaust streams from multiple furnaces.
Claims25
A process for delivering controlled quantities of ammonia to multiple ammonia-consuming devices, the process comprising:
- (I) supplying a vaporization medium from a centralized vaporization medium subsystem;
- (II) providing a separate ammonia vaporizer for each of the ammonia-consuming devices;
- (III) supplying a separate stream of vaporization medium from the centralized vaporization medium subsystem to each of the ammonia vaporizers;
- (IV) supplying an ammonia supply stream comprising a controlled quantity of ammonia to each of the ammonia vaporizers;
- (V) obtaining a vaporized ammonia stream from each of the ammonia vaporizers;
- and
- (VI) supplying one of the vaporized ammonia stream to one of the ammonia-consuming devices.
4 more elements
A system comprising:
- (A) a centralized vaporization medium subsystem;
- (B) multiple ammonia-consuming devices;
- (C) a separate ammonia vaporizer for each of the ammonia-consuming devices adapted for (i) receiving a separate stream of the vaporization medium from the centralized vaporization medium subsystem, (ii) receiving an ammonia supply stream from an ammonia source, and (iii) supplying a vaporized ammonia stream to one of the ammonia-consuming device;
- and
- (D) an ammonia-delivery subsystem for delivering a controlled quantity of ammonia from the ammonia. supply stream to each of the ammonia vaporizers.
2 more elements
Dependencies are inferred from the claim text.