This paper introduces a dynamic facilitating mechan is m for the integration of process planning and scheduling in a batch-manufacturi ng environment. This integration is essential for the optimum use of production re...This paper introduces a dynamic facilitating mechan is m for the integration of process planning and scheduling in a batch-manufacturi ng environment. This integration is essential for the optimum use of production resources and generation of realistic process plans that can be readily executed with little or no modification. In this paper, integration is modeled in two le vels, viz., process planning and scheduling, which are linked by an intelligent facilitator. The process planning module employs an optimization approach in whi ch the entire plan solution space is first generated and a search algorithm is t hen used to find the optimal plan. Based on the result of scheduling module an u nsatisfactory performance parameter is fed back to the facilitator, which then i dentifies a particular job and issues a change to its process plan solution spac e to obtain a satisfactory schedule.展开更多
The HAT-300 catalyst for toluene disproportionation,which was independently developed by the SINOPEC Shanghai Petrochemical Research Institute（SPRI）,has been successfully applied in the 750 kt/a toluene disproportio...The HAT-300 catalyst for toluene disproportionation,which was independently developed by the SINOPEC Shanghai Petrochemical Research Institute（SPRI）,has been successfully applied in the 750 kt/a toluene disproportionation unit at the Tianjin Petrochemical Company.This catalyst is the latest new-generation toluene disproportionation catalyst developed by SPRI.展开更多
文摘This paper introduces a dynamic facilitating mechan is m for the integration of process planning and scheduling in a batch-manufacturi ng environment. This integration is essential for the optimum use of production resources and generation of realistic process plans that can be readily executed with little or no modification. In this paper, integration is modeled in two le vels, viz., process planning and scheduling, which are linked by an intelligent facilitator. The process planning module employs an optimization approach in whi ch the entire plan solution space is first generated and a search algorithm is t hen used to find the optimal plan. Based on the result of scheduling module an u nsatisfactory performance parameter is fed back to the facilitator, which then i dentifies a particular job and issues a change to its process plan solution spac e to obtain a satisfactory schedule.
文摘The HAT-300 catalyst for toluene disproportionation,which was independently developed by the SINOPEC Shanghai Petrochemical Research Institute（SPRI）,has been successfully applied in the 750 kt/a toluene disproportionation unit at the Tianjin Petrochemical Company.This catalyst is the latest new-generation toluene disproportionation catalyst developed by SPRI.
