| 摘要 |
An apparatus and method for delivery of additives(s), e.g., catalyst, co-catalyst, scavengers, and/or other reaction- or product-modifying agents, to a reaction or mixing site, such as a reaction vessel, offers the capability for multi-additive delivery and customization of additive selection, flow and flow rate, and if desired, mixing thereof, without production train shutdowns. The invention includes at least two additive sources that are detachably connected, with conduit, to the reaction or mixing site, and a process control means, preferably automated, that is capable of initiating, terminating, and determining the rate of flow from the additive sources. |
| 主权项 |
1. An apparatus for delivery of at least one additive to at least one polyolefin polymerization reaction site or polyolefin compounding site, comprising:
(a) at least one means of ingress detachably connected to the at least one polyolefin polymerization reaction site or polyolefin compounding site, (b) at least one delivery components comprising a first additive source connected intermittently or continuously in series to a second additive source via at least one detachable means for connection, wherein the second additive source is connected to the at least one means of ingress via the at least one detachable means for connection, and wherein the second additive source is capable of providing continuous flow of the at least one additive into the at least one polyolefin polymerization reaction site or polyolefin compounding site via the at least one means for ingress, and (c) a process control means connected at least to the second additive source, wherein the process control means controls flow of the at least one additive from the second additive source to the at least one means of ingress, wherein controlling flow includes initiation, cessation, and rate of flow of the at least one additive. |
