Chemical Design, Inc. products

Ammonia is a colorless, strongly basic gas used in explosives, cleaning solutions, fertilizer, and refrigerants.  Chemical Design, Inc. can remove ammonia from hydrogen or syngas using a high pressure temperature swing adsorption system.

Chemical Design, Inc.’s Cryogenic Hydrogen Purifiers cool crude hydrogen down to cryogenic temperatures. The hydrogen enters the adsorber vessel where contaminants such as O2, CO, CO2, CH4, water, dopants, argon, and nitrogen are removed down to parts per billion range.  The design allows the customer to conserve utilities for a more economical operation.

The manufacture of silicon crystals generates a vent gas comprised primarily of hydrogen, chlorosilanes, and hydrogen chloride. Chemical Design, Inc.’s process combines compression, cryogenic condensation, catalytic reaction, distillation, ambient adsorption and cryogenic adsorption to purify the hydrogen gas to 99.9999% for re-use. Mixed chlorosilanes are recovered as a liquid stream suitable for distillation to trichlorosilane for reuse. Silicon tetrachloride can be converted to trichlorosilane. The hydrogen chloride is recovered with high purity. The process is attractive environmentally because there is no waste streams disposal.