中国节能技术开发与推广.ppt

1、The Development and Spread of China Energy Conservation Technology:A Refinery Implementation Energy Program中国节能技术开发与推广节能技术: 炼油厂实施的节能方案,December 2008, 12月2008年,2,Introduction导言,The 11th Five-Year Plan Guideline (2006-2010 ) aims for a 20% energy reduction节能降耗20%是第十一五计划(2006-2010)的目标 Target was passed

2、 on to Chinese refineries目标指示下达各石油公司 Sinopecs Yansan Refinery chose KBCs Profit Improvement Program (PIP) to address this energy reduction mandate 中石化燕山石化炼油厂选择KBC的利润增效(PIP)来满足减少能耗的命令 PIP is a 42-month implementation-based program PIP是一个为期42个月项目实施周期的项目 Other elements included in PIP PIP的其他内容如下 Yield

3、optimization 产量优化 Reliability improvement 可靠性改善 LP upgrade 线性规划升级 Standalone SIM-Suite models 单独的反应器模型套件 Rigorous Petro-SIM simulation model (entire refinery) Petro-SIM机理模型 This paper describes the methodology and results of only the energy reduction part of the study 论文所表达的方法论与结果仅是节能的部份,3,Energy Ma

4、rginal Mechanisms边际能量机理,Two Base Cases to reflect summer/winter variations 两个基本工况反应夏季/冬季的变化 Steam, fuel and power balances built in KBCs ProSteam model (next slide) 由KBC的ProSteam模型建立蒸汽,燃料与动力平衡(下页所示) Model used to identify marginal mechanisms and prices 使用模型确认边际机理与价格 Marginal fuel is imported natural

5、 gas (NG) 边际燃料是进口的天然汽(NG) Marginal power is imported 边际动力是进口的 Marginal medium pressure steam (MPS) is letdown边际中压蒸汽(MPS)是降压来的 Marginal low pressure steam (LPS) is imported (winter) / exported (summer)边际低压蒸汽(LPS)是进口(冬天)/出口(夏天) Sinopec uses standard factors to convert all energy usage to a common Fuel

6、 Oil Equivalent (FOE) basis中石化使用标准因素转换所有能量的使用为常见的标油(FOE) Many features are standard for Chinese refineries许多特徵为中国炼厂的标准,4,ProSteam Energy Model ProSteam 的能量模型,5,Energy Benchmarking能量标定,KBC uses Best Technology (BT) to benchmark energy performance KBC使用最佳技术(BT)来作能量标定 BT refinery is 100% 最佳的炼厂的BT值是100%

7、 Yansan BT index is 143% ( 72.6 kg FOE per ton of crude) 燕山的BT值是143% (72.6Kg标油FOE每吨原油) Performance compared against 绩效表现 150+ world sites (left) 150+全球工厂(左图) Asian sites (right) 亚洲工厂(右图),6,Gap Analysis差距分析,Gap analysis quantifies difference between actual and BT performance差距分析定量实际与最佳绩效表现的差距 Gaps di

8、vided in five groups:差距分为五个范围 Fired Heaters Efficiency加热炉效率 Good average thermal efficiency (87.9%). Gap = 2.5 kg FOE/t 好的平均热效率(87.9%).差距=2.5kg标油/吨 Power Generation Efficiency 发电效率 Low cycle efficiency (38.4%). Gap = 4.3 kg FOE/t gap. 低循环效率(38.4%).差距=4.3 kg标油/吨 High-Level Heat Integration 高位能热联合 Bet

9、ter-than-industry heat recovery. Gap = 3.2 kg FOE/t gap.优于行业热回收. 差距=3.2 kg标油/吨 Off-sites energy usage 界区外的能源利用 Main energy inefficiency 最主要能源低效率的地方 Gap = 8.2 kg FOE/t 差距=8.2kg标油/吨 Process opportunities 工艺节能机会 Remaining items 其余的 Gap = 3.7 kg FOE/t 差距=3.7kg标油/吨,7,Opportunity Evaluation机会评估,Combines e

10、xperience and sophisticated techniques结合尖端技术和模型 After units and utilities are individually optimized: Total Site Analysis完成了单装置和公用工程的个别优化后:全面分析 Perfect tool for inter-unit integration via utility system 完美的工具经由公用工程系统将装置间的联合起来 Total Site profiles include全面分析包含 All processes (and tank farms) heat sour

11、ces and sinks所有工艺（和罐区）的热源和冷源 Also the utility system还包括了公用工程系统 Used in Yansan to explore low-grade heat recovery options (off-sites gap)燕山使用Total Site分析方法，探究低温热回收的方案(界区外的差距) Most attractive: hot water (HW) loop最具吸引力的: 热水徊路 Generation potential is 46MW发生热水的潜力为46MW Use potential 25MW (limiting)热水用户潜力为

12、25MW Identifies units with useful waste heat确认使用废热的装置 Specific heat exchangers selected特定换热器的选择,8,Making it Happen实现计划,Identified benefits have no tangible value unless implemented除非实施否则确认效益无法量化 Strategy:战略 Rapid implementation of quick-win opportunities快速实施速得效果的机会 Implement operational improvements

13、 that involve more detailed analysis, modeling and rigorous test runs实施关系到更详细分析,模拟与机理测试的操作改善 Minor investment opportunities implemented during new units start-up (e.g piping modifications)少投资机会的实施当新装置开车时(例管路休改时) Top-10 implemented opportunities:头10个已实施的机会,9,Sustaining the Benefits 维持效益,Savings degra

14、de with time 随着时间的推移会衰退 Operation slips back to original condition 操作会回到其原来的条件 KBC uses its Profit Tracker tool to prevent this from happening KBC使用利润追踪工具预防其发生 All implemented opportunities included包含所有已实施的机会 Identifies and monitors Key Performance Indicators (KPIs)识别和监测关键绩效指标(KPIs ) Ensures benefit

15、s are sustained 保证效益能够持续 Deviations from optimum immediately visualized显现偏离最佳条件的情况 Lost dollar calculation puts a value on the discrepancy经济损失的计算给这个差异一个数值 Prompts swift corrective action提醒快速地采取纠正措施 Example: column reflux ratio reduction opportunity例如:降低塔回流比的机会,10,Conclusions 结论,Total identified ener

16、gy savings are close to 24% (exceeds the 20% target)所有确认节能结果接近24%(超过20%目标) 5% implemented 5%已实施 7% of work-in-progress 7%正循序渐进实施中 12% major investment (Gas Turbine based cogeneration) 12%主要投资(燃气轮机 ) Further reduction is expected 期待进一步减少 Technology transfer played a central role:技术转移扮演核心角色 Formal cla

17、ssroom training on leading software packages课堂软件套件培训 On-the-job knowledge transfer在职知识转移 Most methodologies and tools are relevant all Chinese Petrochemical and Chemical industries 大部分方法和工具都与中国的其他炼油厂有关，而且与石油和化工行业有关,11,Conclusions 结论,Program results verified by comparing the study estimations with actual data collected by refinery (next slide). From this:通过将研究估算与从炼油厂收集的实际数据相比较，验证了该计划的结果 Last year average energy reduction of 6.4% 去年平均