Selection of an efficient type of unit for drying and degassing of polyvinyl chloride

Journal Article · Thu May 01 04:00:00 EDT 1986 · Chem. Pet. Eng. (Engl. Transl.); (United States)

OSTI ID:5452518

Koryagin, A A; Khaustov, I P; Osinskii, V P; Tuchnina, I V

This paper addresses the problem of protection of the environment from vinyl chloride (VC), which is contained in the heat-transfer agent discharged into the drying units. The results of the determination of VC content in polyvinyl chloride dust in the spent heat transfer agents are listed for a number of drying units. The authors consider the case where VC is desorbed from polyvinyl chloride on drying and returns to the production process after its extraction from the spent-heat transfer agent. For selection of an efficient type of unit for drying PVC a comparison of the technical and economic factors of different units in accordance with the standard method is made. Experiments were conducted for drying PVC using models of units indicated in a table. It is shown that the convective dryer using superheated steam as heat-transfer agent at the first stage is the most economical alternative.

• OSTI ID: 5452518
• Journal Information: Chem. Pet. Eng. (Engl. Transl.); (United States), Journal Name: Chem. Pet. Eng. (Engl. Transl.); (United States) Vol. 21:9; ISSN CPTEA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CHLORINATED ALIPHATIC HYDROCARBONS
COMPARATIVE EVALUATIONS
CONCENTRATORS
COST BENEFIT ANALYSIS
CYCLONE SEPARATORS
DEGASSING
DRYERS
DRYING
EFFICIENCY
ENERGY EFFICIENCY
EQUIPMENT
EXHAUST GASES
FABRIC FILTERS
FILTERS
FLUIDIZED BEDS
FLUIDS
GASEOUS WASTES
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT TRANSFER FLUIDS
INERTIAL SEPARATORS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE TESTING
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
POLYMERS
POLYVINYLS
PURIFICATION
PVC
SCRUBBERS
SCRUBBING
SEPARATION EQUIPMENT
STEAM
TESTING
WASTES