Adsorptive treatment of shale-tar benzene

Journal Article · Sun Jan 01 04:00:00 EST 1984 · Chem. Technol. Fuels Oils (Engl. Transl.); (United States)

OSTI ID:6717934

Alekseeva, R V; Kharitonova, L K

This article describes the use of adsorbents to remove thiophene from benzene. A nickel-substituted type X zeolite has been developed as a thiophene-selective adsorbent. Unsaturates were removed from the benzene by using A-4M microbead adsorbent. The optimal treating conditions were selected in pilot-unit tests at a pressure p=2 MPa, using a mathematically designed experiment. The A-4M adsorbent can be used repeatedly, with a service life of 6 months. The clarified benzene was treated at room temperature, passing the benzene at a velocity of 0.3 cm/min through a bed of NiCaX, which adsorbs unsaturated hydrocarbons along with the thiophene. The final stage in the treatment is the removal of saturated hydrocarbons from the benzene on commercial CaA zeolite in the vapor phase at 100/sup 0/C with a feed velocity of 0.3 cm/min. The hydrocarbons were desorbed from the void spaces of the zeolite with n-pentane, subsequently removing the desorbent by conventional fractionation.

• Research Organization: Krasnodar Branch of Sci-Industrial Association ''Lenneftekim''
• OSTI ID: 6717934
• Journal Information: Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Journal Name: Chem. Technol. Fuels Oils (Engl. Transl.); (United States) Vol. 19:5-6; ISSN CTFOA
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040600* -- Oil Shales & Tar Sands-- Products & By-Products
ADSORPTION
ALKALINE EARTH METAL COMPOUNDS
ALKANES
AROMATICS
BENZENE
CALCIUM COMPOUNDS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
FLUIDS
FRACTIONATION
GASES
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
MINERALS
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
PENTANE
REACTION KINETICS
SATURATION
SEPARATION PROCESSES
SERVICE LIFE
SHALE TAR
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TAR
THIOPHENE
TRANSITION ELEMENT COMPOUNDS
VAPORS
VELOCITY
ZEOLITES