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炼油装置对蒸汽的消耗是除了加热炉燃料油外的最大用能方式之一,炼油装置的低温余热利用是石化装置节能减排的主要工作思路,在常减压装置适当的工艺部位选择合适的热流作为热源,增加蒸汽发生器,再利用适当的低温余热提高换热终温,可替代原来的燃油蒸汽锅炉,节能减排效果显著,经济效益十分可观。 相似文献
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环境、资源、能耗是制约我国石化工业发展的主要因素,通过分析我国典型石化企业污染物状况,提出采用混合原料气化技术处理石化企业某些污染物,来生产石化装置需用的氢气、电力或燃料气,以达到节能减排的目的。 相似文献
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化工生产装置停工过程,会产生大量的不合格产品.这类不合格产品均需排放至火炬系统进行燃烧.而环保要求日益严格,企业对节能减排方案的研究越来越重视,这促进了停工节能减排技术的发展.中韩石化乙烯装置检修前制定了详细的停工节能减排方案,停工阶段天然气及氮气运转充分回收物料.停工后蒸煮水洗,化学清洗有效缩短了倒空时间,实现了减少... 相似文献
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介绍了近年来PTA装置节能减排的新技术,PTA装置主要废弃物处理方法,乌石化新建120万t PTA装置节能减排措施。通过对现有的新旧PTA工艺对比,指出PTA装置新技术节能减排明显。 相似文献
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针对我国石化行业炼油催化剂及聚合物产品等干燥装置存在的问题,提出了采用节能环保型干燥设备及流程进行技术改造的优化方案,列举了采用优化方案在实际应用中取得的节能减排效果。 相似文献
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《中国石油和化工标准与质量》2013,(13):251-252
节能减排是企业实现企业社会责任,优化企业经营管理的有效途径之一。结合国内LNG接收站目前的设备运行情况、接收站工艺等情况,探析实现LNG接收站节能减排的措施。本文从提高管存量错时用电,优化设备管理,优化接收站工艺等三个方面阐释了节能减排措施,为企业精细化管理提供参考。 相似文献
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研究国外和国内先进石油公司节能经验,得出结论:装置大型化和炼化一体化是节能管理的基础,是实现节能的基本保证和提高企业竞争力最好的手段。炼化产业基地建设和集中公用工程服务,是现代"石化岛"整体节能的新思路,是实现结构节能的最有效的方法之一。利用现代化网络、集成、过程管理软件对系统进行过程管理,是现代石化企业节能管理的发展趋势。 相似文献
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11月15日,南京市经济委员会和南京市环保局联合召开节能减排新闻发布会,宣布今后南京将在推进节能减排工程、调整产业、提高污染治理能力等方面,采取更为严厉举措,实现未来三年的节能减排目标。南京市政府新近决定,每年3000万元奖励节能项目。今后三年,南京将在钢铁、石化、建材行业全面实施余热余压利用工程;在全市省级以上开发区和重点工业园区全部实现热电联产、集中供热;城区及主城周边逐步推广分布区能源系统;在圣韩玻璃有限公司、南京电气集团等企业开展玻璃窑炉节能改造;在南汽等企业开展机械加工窑炉的节能技术改造。产业调整是节能… 相似文献
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通过选择适合的烟气分析仪,利用烟气分析技术,进行玻璃窑炉的烟气以及残氧量分析。根据分析结果选择适合的氧燃比,调整燃料燃烧效率,查找最佳燃烧状态。该分析方法的研究能有效地评价窑炉的燃烧状态,合理调节窑炉热工参数,促进窑炉节能减排工作。 相似文献
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炼油企业通常由物料生产系统与能量系统组成。传统的企业生产计划优化通常以生产系统物流优化为主, 能量系统基于物料生产优化结果进行产能优化以满足企业级能源供需平衡。此种优化方法不仅压缩了企业整体优化空间并且降低了燃料油与瓦斯等中间产品的利用率。基于装置能耗模型与能源供需以及中间产品的产耗质量平衡关系, 建立炼油企业生产系统与能源系统的集成优化模型, 通过求解MINLP模型进而实现企业生产物流与能流的集成优化。案例实践表明, 相较于传统分步优化方法, 集成优化方法不仅有效降低了全厂的生产成本, 并且实现了生产的节能减排。 相似文献
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《Fuel Processing Technology》2006,87(12):1085-1094
This work was aimed at modeling of major gaseous emissions (NOx, SO3, SO2, CO2) from boiler units of a power plant firing (or co-firing) fuel oil and natural gas for variable operating conditions (load and load-related variables: excess air, flue gas recirculation, etc.). The emission rate of the pollutants for the co-firing was estimated for a particular boiler using these characteristics for the burning of each fuel in the boiler on its own and taking into account energy fractions (contributions) of fuel oil and natural gas to the boiler heat input. The gaseous emissions (in terms of emission concentrations, emission rates and specific emissions) from a 200-MW boiler unit firing low-S fuel oil and from a 310-MW boiler unit firing (or co-firing) medium-S fuel oil and natural gas were estimated and compared for 50–100% unit loads based on actual fuel properties and load-related operating variables of these units. Upper limit for the energy fraction of medium-S fuel oil was determined for the 310-MW boiler unit co-firing the two fuels with the aim to meet the national emission standard for SO2. 相似文献
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近几年来,化肥市场持续疲软,国内化肥生产厂的生产经营都面临着不同程度的困难,尤其以石脑油为原料的大化肥装置,因原料和燃料价格的上涨,都出现了严重亏损,笔者结合多年来的生产实践,提出依托企业联合优势,做好原料和燃料的优化,努力降低生产成本,同时通过外供氢气和液氨以分流产品,是提高化肥装置运行效益的重要措施之一。 相似文献
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我国工业过程碳排放占比高达70%,实施节能增效、替代燃料、CO2捕集等是实现工业过程碳减排的重要路径。高效膜分离技术已成为过程工业节能减排和环境治理的共性支撑技术。本文围绕碳减排目标,结合本文作者课题组在分子筛膜领域的相关工作,重点论述分子筛膜分离技术在有机溶剂脱水、清洁能源生产、CO2分离和反应过程强化等领域的研究进展。基于本文作者课题组十余年的有机溶剂脱水产业化工作,提出降低膜装备投资的中空纤维分子筛膜技术路线、强化分子筛膜应用技术研究是实现大规模工业应用的关键。分子筛膜在工业气体分离领域仍属空白,加强高硅/全硅分子筛膜的制备及其在复杂组成气体的分离应用研究,对推动分子筛膜气体分离的实际应用至关重要。 相似文献
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Nowadays,the efficient and cleaner utilization of coal have attracted wide attention due to the rich coal and rare oil/gas resources structure in China.Coal chemical looping gasification (CCLG) is a promising coal utilization technology to achieve energy conservation and emission reduction targets for highly pure synthesis gas.As a downstream product of synthesis gas,methyl methacrylate (MMA),is widely used as raw material for synthesizing polymethyl methacrylate and resin products with excellent properties.So this paper proposes a novel system integrating MMA production and CCLG (CCLG-MMA) processes aim-ing at "energy saving and low emission",in which the synthesis gas produced by CCLG and purified by dry methane reforming (DMR) reaction and Rectisol process reacts with ethylene for synthesizing MMA.Firstly,the reaction mechanism of CCLG is investigated by using Reactive force field (ReaxFF)MD simulation based on atomic models of char and oxygen carrier (Fe2O3) for obtaining optimum reac-tion temperature of fuel reactor (FR).Secondly,the steady-state simulation of CCLG-MMA system is car-ried out to verify the feasibility of MMA production.The amount of CO2 emitted by CCLG process and DMR reaction is 0.0028 (kg CO2)-1·(kg MMA)-1.The total energy consumption of the CCLG-MMA system is 45521 kJ·(kg MMA)-1,among which the consumption of MMA production part is 25293 kJ·(kg MMA)-1.The results show that the CCLG-MMA system meets CO2 emission standard and has lower energy con-sumption compared to conventional MMA production process.Finally,one control scheme is designed to verify the stability of CCLG-MMA system.The CCLG-MMA integration strategy aims to obtain highly pure MMA from multi-scale simulation perspectives,so this is an optimal design regarding all factors influencing cleaner MMA production. 相似文献
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A linear programming-based approach was applied to optimize the power (or load) distribution among 200-MW and 310-MW units of a 1330-MW power plant (co-)firing fuel oil and natural gas. The objective function for the optimization was the total costs, including “internal” (or fuel) and “external” (or environmental) costs, for the power plant meeting the current load demand. Both fuel and environmental costs (the latter being associated with NOx, SO3, SO2 and CO2 emissions) of the units were predicted for different fuel options. The total costs for an individual boiler unit were shown to be quasi-linear with the unit load. Optimal load dispatch over the units was determined using a typical daily load curve of the power plant, for distinct climatic seasons in Thailand. The time-domain savings of the total costs resulted from switching the units from actual to the optimized loads were quantified for this power plant. 相似文献
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