摘要:
The liquid feed nozzle assemblies for a circulating fluid bed reactor comprise (i) a throttle body premixer (13) to combine liquid feed with atomization steam to form a liquid feed/steam mixture comprising gas bubbles in liquid; (ii) a conduit (15) connected to the premixer (13) and to a discharge nozzle (29) to convey a flow of the liquid/steam mixture created by the premixer (13) to the nozzle body (29); (iii) a discharge nozzle (29) connected to the flow conduit (15) to shear the liquid feed/steam mixture to create liquid feed droplets of reduced size and (iv) a disperser at the outlet of the discharge nozzle (29) to provide a spray jet of liquid feed having an increased surface area relative to a cylindrical jet. The nozzle assembles are particularly useful in fluid coking units using heavy oil feeds such a tar sands bitumen.
摘要:
A process for thermally cracking a fuel, said process comprising the steps of—on a solid carrier in a first reaction cracking fuel thereby producing Hydrogen and Carbon species—in a second reaction combusting said Carbon on the solid carrier wherein the first and second reaction is carried out in at least one fluidized bed.
摘要:
This invention relates to a process for reducing fouling of equipment used in thermal conversion processes such as FLUID COKING™ and FLEXICOKING™. Acoustic energy is used to acoustically agglomerate fine mists created during the coking process. The agglomerated mists are then carried along with the circulating coke instead of depositing on coking equipment.
摘要:
The present invention relates to a method for determining the source of fouling in petroleum thermal conversion process units. More particularly, the invention distinguishes whether fouling occurs due to feed entrainment of small feed droplets or vapor phase condensation.
摘要:
The vaporized fraction is passed via line (11) to soaker drum (2) which is maintained at effective conditions so that the highest boiling materials are condensed out. Typically these conditions will include controlled quenching of vapor fraction just below the dewpoint. A quench stream can also be passed into soaker drum via line (21).
摘要:
A residuum feedstock (10) is upgraded in a short vapor contact time thermal process unit (11) comprised of a horizontal moving bed of fluidized hot particles. The resulting upgraded product (14) is then fed to a fluid catalytic cracking process unit (17) where the upgraded product is converted to lower boiling products (48).
摘要:
A residuum feedstock (10) is upgraded in a short vapor contact time thermal process unit (11) comprised of a horizontal moving bed of fluidized hot particles. The resulting upgraded product (14) is then fed to a fluid catalytic cracking process unit (17) where the upgraded product is converted to lower boiling products (48).
摘要:
Procédé de vapocraquage d'hydrocarbures, dans un four (10) de vapocraquage à tubes (12) relié à des moyens (16) de trempe indirecte des effluents gazeux sortant du four, le procédé consistant à laisser se former une couche de coke dure sur les parois internes de l'installation, en particulier sur les parois internes des tubes (12) du four, puis à injecter dans la charge d'hydrocarbures et de vapeur d'eau à craquer, une faible quantité de particules solides érosives, que l'on sépare des effluents gazeux dans un cyclone (28) prévu en sortie des moyens de trempe indirecte. L'invention permet un fonctionnement continu d'une installation de vapocraquage.