臺灣博碩士論文加值系統

本研究的主要目的是發展轉化型煉油廠中的五項芳香烴族化學品(即苯、甲苯、混合二甲苯、對位二甲苯與鄰位二甲苯)的供應鏈生產規劃模式。我們首先發展出一個確定性的數學規劃模式，其中包含相互關聯的反應程序模組、分離程序模組與儲槽模組，可在固定的供應量或需求量限制下決定出多個時期的最佳原物料採購量、中間油料庫存量、各單元煉量以及產品庫存量。接下來我們進一步將前述模式修改成具有不確定參數的隨機性規劃模式，利用此模式可發展包括原油供應與客戶需求不穩定情況下的生產規劃策略；此外我們還引入可用度的概念，據以訂定出生產工場出現非預期停俥時所需因應的生產規劃以及維修排程策略。最後，我們將所建立芳香烴族化學品供應鏈的不確定性數學規劃模式應用在幾個實際上可能發生的情境上。

The scope of this study aims at the supply chain of five main products in a typical conversion refinery, i.e., benzene, toluene, mix-xylene, ortho-xylene, and para-xylene. A deterministic mixed integer linear program (MILP), which includes a large number of interconnected reaction models, separation models, and storage models, has been constructed first under given amounts of raw-material supplies and product demands to coordinate various planning tasks for optimizing the supply-chains performance. The deterministic MILP model can be solved to determine the proper procurement strategy of raw-material and products, throughput of processing units, and the inventories of intermediates and final products, etc. The above-mentioned deterministic model has also been modified into a stochastic one to take into account of uncertain feed supplies and product demands. Furthermore, by incorporating the concept of availability, the optimal planning and maintenance strategies can be devised when the risk of unexpected shutdown is significant. Several realistic case studies have been adopted in this work to demonstrate the utility of proposed approach.

中文摘要------------------------------------------------------------------------------------------------ I
英文摘要----------------------------------------------------------------------------------------------- II
表目錄-------------------------------------------------------------------------------------------------- V
圖目錄----------------------------------------------------------------------------------------------- VIII
符號說明---------------------------------------------------------------------------------------------- IX
第一章 緒論 ------------------------------------------------------------------------------------------ 1
第二章 芳香烴族化學品煉製程序 ------------------------------------------------------------- 5
2.1 輸入 ---------------------------------------------------------------------------------------------- 8
2.2 輸出 ---------------------------------------------------------------------------------------------- 9
2.3 煉製流程結構--------------------------------------------------------------------------------- 12
2.4 煉製單元--------------------------------------------------------------------------------------- 16
2.4.1 常壓蒸餾工場(AD)----------------------------------------------------------------------- 16
2.4.2 輕油裂解工場(NC)----------------------------------------------------------------------- 16
2.4.3 重組工場(RF) ----------------------------------------------------------------------------- 17
2.4.4 芳香烴萃取工場(AET) ----------------------------------------------------------------- 17
2.4.5 二甲苯分離工場(XF) ------------------------------------------------------------------- 18
2.4.6 對二甲苯吸附分離工場(PR) ---------------------------------------------------------- 18
2.4.7 異構化工場(IM) -------------------------------------------------------------------------- 19
2.4.8 甲苯轉化工場(TT) ----------------------------------------------------------------------- 19
2.4.9 輸儲設施 ----------------------------------------------------------------------------------- 20
第三章 隨機規劃模式 ---------------------------------------------------------------------------- 21
3.1 數學表示式 ----------------------------------------------------------------------------------- 22
3.2 簡單範例 -------------------------------------------------------------------------------------- 24
3.3 含不確定整數參數之隨機規劃模式及其應用 -------------------------------------- 28
3.4 簡單範例 -------------------------------------------------------------------------------------- 29
第四章 芳香烴族化學品供應鏈之生產規劃及維修排程策略------------------------- 31
4.1 確定性生產規劃模式 ---------------------------------------------------------------------- 31
4.1.1 基本煉製模式 ---------------------------------------------------------------------------- 31
4.1.2 供應鏈結構 ------------------------------------------------------------------------------- 35
4.1.3 目標函數 ---------------------------------------------------------------------------------- 41
4.2 隨機性生產規劃模式 ---------------------------------------------------------------------- 44
4.2.1 建構步驟 ---------------------------------------------------------------------------------- 44
4.2.2 不確定因素 ------------------------------------------------------------------------------- 48
4.3 煉製單元之維修策略 ---------------------------------------------------------------------- 51
4.3.1 修正型維修(Corrective Maintenance)------------------------------------------------ 52
4.3.2 預防型維修策略(Preventive Maintenance) ----------------------------------------- 54
第五章 案例研究----------------------------------------------------------------------------------- 59
5.1 供需不確定情況下的生產規劃 ---------------------------------------------------------- 60
5.1.1 案例1.1-------------------------------------------------------------------------------------- 60
5.1.2 案例1.2-------------------------------------------------------------------------------------- 68
5.2 考慮非預期停俥之生產規劃 ------------------------------------------------------------- 71
5.2.1 案例2.1-------------------------------------------------------------------------------------- 71
5.2.2 案例2.2-------------------------------------------------------------------------------------- 80
5.2.3 案例2.3-------------------------------------------------------------------------------------- 85
第六章 結論與展望-------------------------------------------------------------------------------- 89
5.1 結論 --------------------------------------------------------------------------------------------- 89
5.2 展望 --------------------------------------------------------------------------------------------- 89
參考文獻----------------------------------------------------------------------------------------------- 91
自述----------------------------------------------------------------------------------------------------- 95
附錄 A-------------------------------------------------------------------------------------------------- 97
附錄 B------------------------------------------------------------------------------------------------- 107
附錄 C----------------------------------------------------------------------------------------- 附於光碟

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