Coke production

Details Coke production Coke production

1976-10-18

1978-08-22

Wolk, Morris O.

Distillation: processes, thermolytic

With comminuting

Prior to charging to carbonizing zone

201 5, 201 28, 201 29, 201 31, 201 36, 201 38, 201 44, C10B 4724, C10B 4910, C10B 5304, C10B 5702

Patent

active

041087313

ABSTRACT:
Coke is produced with high yield and low sulfur by heating and drying ground coking coal at 200.degree. to 300.degree. C. for 15 to 120 minutes in air, and then heating in two semicoking stages in nitrogen in fluidized bed reactors. The first semicoking stage is 400.degree. to 600.degree. C. for 10 to 60 minutes while the second is 800.degree. to 1,100.degree. C. for 10 to 60 minutes. Tar is condensed from the offgases of the first semicoking stage and the residual gas is divided and 15 to 95% recycled to the first semicoking reactor. Similarly, 15 to 95% of the offgases from the second semicoking reactor is recycled. The condensed tar is fed to the final coke-forming operation.

REFERENCES:
patent: 2131702 (1938-09-01), Berry
patent: 2650190 (1953-08-01), Steinschlaeger
patent: 2955077 (1960-10-01), Welinsky
patent: 3051629 (1962-08-01), Gorin et al.
patent: 3076751 (1963-02-01), Minet
patent: 3140241 (1964-07-01), Work et al.
patent: 3140242 (1964-07-01), Work et al.
patent: 3184293 (1965-05-01), Work et al.
patent: 3375175 (1968-03-01), Eddinger et al.
patent: 3414480 (1968-12-01), Stotler et al.
patent: 3444046 (1969-05-01), Harlow
patent: 3574065 (1971-04-01), Eddinger et al.
patent: 3843458 (1974-10-01), Kemmetmueller
patent: 3996108 (1976-12-01), Joseph

Affiliated with

Also associated with

Rating

Coke production does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coke production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coke production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1556349