摘要:
Methods of oligomerizing hydrocarbons are disclosed. These methods include contacting olefins with an oligomerization catalyst in an oligomerization zone under oligomerization reaction conditions.
摘要:
Methods for dimerizing alpha-olefins utilizing immobilized buffered catalysts, wherein the catalytic component is of the formula: where M is selected from the group of Ti, Zr, Hg, Ni, and V and R and R′ are selected from the group consisting of hydrogen, alkyl, aryl, alkenyl, alkinyl, alkyloxy, substituted aryl, and halogens, are provided.
摘要:
Methods for dimerizing alpha-olefins utilizing immobilized buffered catalysts wherein the catalytic component is of the form (ligand)2-M-X2 where X is a halogen, M is selected from the group of Ti, Zr, and Hf and ligand is selected from the group consisting of cyclopentadienyl, substituted cyclopentadienyl, indenyl, and substituted indenyl, wherein the two ligands may be the same or different compound are provided.
摘要:
A process for gasification is provided for a non-catalytic, two-stage gasification process for gasification of a carbonaceous material. The reactor system generally comprises combustion in a first reaction zone and combustion in a second reaction zone.
摘要:
A process is disclosed for removing/recovering sulfur from a gas stream using a Claus-type reactor followed by contact with a regenerable sorbent and recycle of SO2 from the sorbent regeneration to the Claus-type reactor feed.
摘要:
A system employing a regenerable zinc-oxide based sorbent to remove one or more contaminants from an incoming gas stream. The contaminant-depleted gas stream can then be used for any subsequent application, while at least a portion of the contaminant-laden sorbent can be regenerated via a step-wise regeneration process. In one embodiment, sorbent regenerated via the step-wise regeneration process can comprise less sorbent-damaging compounds than traditional sorbents exposed to conventional regeneration processes.
摘要:
The present invention relates to an aeration device for use in a liquid medium. The device includes a housing adapted to float within the medium such that a top portion thereof remains above a top surface of the medium. The housing has a bottom portion and an open side portion. The device further includes a hose affixed to the bottom portion of the housing substantially parallel to the surface of the liquid medium. The hose has a wall with a plurality of pores formed therein. The device further includes a gas-supplying pipe affixed to the hose and means for supplying a gas to the pipe such that the gas passes through the pipe and into the hose.
摘要:
A process for the simultaneous removal of H2S and SO2 from tail gases is disclosed. A tail gas stream is contacted with a sorbent in a sorption zone to produce a product gas stream and a sulfur laden sorbent, wherein the sorbent comprises Zn and a promoter metal.
摘要:
A starter device for an internal combustion engine (10) has an actuating device and an entrainer (24) can be coupled to the crankshaft (13) of the engine (10). The entrainer (24) and the actuating device are rotatably journalled about a rotational axis (14). The entrainer (24) and the actuating device are connected to each other via a damping spring (23). The damping spring (23) is connected with a first end (26) to the actuating device and with a second end (27) to the entrainer (24). The entrainer (24) and the actuating device have respective supports (21, 42). The damping spring (23) is mounted on the outer periphery of the two supports (21, 42). In the direction of the rotational axis (14), a disc (22) is mounted between the two supports (21, 42) in order to avoid the situation that the damping spring (23) can force itself into a gap between the two supports (21, 42) which gap can arise during operation.
摘要:
The present invention relates to dry delivery system comprising a xerogel or film with applied active ingredients for topical active ingredient delivery or other purposes. Said delivery system are obtainable by a method according to the invention. The present invention also provides for methods for achieving defined localization of stable or unstable active substances on dry xerogels or films, which can be reconstituted into hydrogels. From the obtained delivery systems, the active substances are released with advantageous release kinetics.