Process for cleaning of toxic waste materials by refining and/or elimination of biologically difficult to degrade halogen, nitrogen and/or sulfur compounds

Patent · Tue Mar 28 04:00:00 EST 1989

OSTI ID:6102165

Visser, L; Laghate, A S

A process is described for converting toxic liquid waste materials containing harmful amounts of biologically-difficult-to-degrade organic halogen compounds into an innocuous hydrocarbon stream. It is accomplished by conditioning a toxic liquid waste material containing organic halogen compounds, which may also contain organically bound oxygen, nitrogen and/or sulfur, passing the conditioned material over a column filled with adsorbent to guard the hydrogenating catalyst, and passing this liquid waste material, together with hydrogen, over a hydrogenating catalyst at 350/sup 0/-400/sup 0/C under a pressure of 30-80var and with a LHSV (Liquid Hourly Space Velocity) of 0.5-2.5H/sup -1/. The effluent of the hydrogenolysis is then cooled, and separated into a non-toxic hydrocarbon stream and a stream containing one or more of a hydrogen halogenide or ammonia containing stream and a gaseous stream of light hydrocarbons and hydrogen, the toxic liquid waste stream comprising 0.5-60% by weight of halogen and 0-10% sulfur and O to trace amounts of nitrogen, the conditioning comprising filtering.

• Assignee: Kinetics Technology International B.V., Zoetermeer
• Patent Number(s): US 4816138
• OSTI ID: 6102165
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AMMONIA
CHEMICAL REACTIONS
DESULFURIZATION
ELEMENTS
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
LIQUID WASTES
MANAGEMENT
MATERIALS
MEDIUM PRESSURE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN
PROCESSING
REMOVAL
SEPARATION PROCESSES
SULFUR
TOXIC MATERIALS
VERY HIGH TEMPERATURE
WASTE MANAGEMENT
WASTE PROCESSING
WASTES