公开(公告)号：WO2016085945A1

公开(公告)日：2016-06-02

申请号：PCT/US2015/062355

申请日：2015-11-24

Applicant: UNIVATION TECHNOLOGIES, LLC

Inventor： SAVATSKY, Bruce J. ,  THOMAS, Daniel N., Jr. ,  LYNN, Timothy R.

IPC: B01J8/18 ,  C08F210/14 ,  G05B17/00 ,  C08F2/34 ,  C08F210/16

CPC classification number: G05B17/00 ,  B01J8/1809 ,  B01J8/1836 ,  B01J2208/00061 ,  B01J2208/00274 ,  B01J2208/00539 ,  B01J2208/00548 ,  B01J2208/00628 ,  B01J2208/00663 ,  B01J2208/00991 ,  C08F4/65922 ,  C08F210/16 ,  C08F2400/02 ,  C08F4/65904 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2/34

Abstract: Methods for producing polyolefin polymers may use a predictive melt index regression to estimate the melt index of the polyolefin during production based on the composition of the gas phase and, optionally, the concentration of catalyst in the reactor or reactor operating conditions. Such predictive melt index regression may include multiple terms to account for concentration of ICA in the reactor, optionally concentration of hydrogen in the reactor, optionally concentration of comonomer in the reactor, optionally the catalyst composition, and optionally reactor operating conditions. One or more terms may independently be represented by a smoothing function that incorporates a time constant.

Abstract translation: 用于制备聚烯烃聚合物的方法可以使用预测性熔体指数回归来估计生产期间聚烯烃的熔体指数，其基于气相的组成和任选地在反应器或反应器操作条件下的催化剂浓度。 这种预测性熔融指数回归可以包括考虑反应器中ICA浓度的多个术语，反应器中任选地浓度的氢，反应器中任选的共聚单体浓度，任选地催化剂组合物的浓度，以及任选的反应器操作条件。 一个或多个术语可以独立地由包含时间常数的平滑函数表示。