* together you decide whether to begin work. * either a set number of sessions, usually once weekly, lasting 50 minutes for one to one counselling and one and half hours for group therapy. * or you agree to work together ongoingly with a commitment to giving a minimum of one months notice that you will end the work.
Needle coke, also called acicular coke, is a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries and is particularly valuable because the electrodes must be replaced regularly. Needle coke is produced exclusively from either FCC decant oil or coal tar pitch.
Petroleum coke, abbreviated coke or petcoke, is a final carbon-rich solid material that derives from oil refining, and is one type of the group of fuels referred to as cokes. Petcoke is the coke that, in particular, derives from a final cracking processâa thermo-based chemical engineering process that splits long chain hydrocarbons of petroleum into shorter chainsâthat takes place in units termed coker units. Stated succinctly, coke is the carbonization product of high-boiling ...