Abstract:
Processes and systems for the production of hydrogen cyanide via the Andrussow process are described. A reaction zone, wherein oxygen, ammonia, and methane can be allowed to react in the presence of a catalyst comprising platinum to provide hydrogen cyanide. A desulfurization zone, wherein a feed stream comprising sulfur and at least one of the oxygen, the ammonia, and the methane can be contacted with a desulfurization material to produce a sulfur-reduced feed stream that is provided to the reaction zone. In an example, the desulfurization material includes zinc oxide.
Abstract:
Described is a process for the production and recovery of hydrogen cyanide, which includes recovering hydrogen from a crude hydrogen cyanide product. The process includes forming a crude hydrogen cyanide product and separating the crude hydrogen cyanide product to form an off-gas stream and a hydrogen cyanide product stream. The off-gas stream is further separated to recover hydrogen. The hydrogen cyanide product stream is further processed to recover hydrogen cyanide.
Abstract:
An elastic thread transporting assembly and method provides for the transporting of thread to a production line. The assembly includes a thread creel for supplying multiple threads. The thread creel defines an unwinding location. A carrier is positioned for transporting the threads to the production line along a carrier path. An attachment device for attaching the threads to the carrier is provided. The attachment device is placed in close proximity to the unwinding location. The carrier path provides unrestricted access to the threads between the unwinding location and the production line.