掺炼催化裂化汽油的300kt/a催化重整装置设计与开工

介绍了中国石油青海油田格尔木炼油厂300kt/a催化重整装置的工程设计和开工情况。针对该项目涉及到已有装置的搬迁和设备利旧以及预处理部分掺炼催化裂化汽油的特点,中国石油工程建设公司华东设计分公司提出了催化剂级配装填、原料过滤和脱水、原料油混合比例控制3项技术措施,同时确定了重整工艺技术路线、设备的利旧方案和节能措施。该装置自投料至今已经平稳运行接近1年,各项技术经济指标达到或超过设计要求,尤其是掺炼了部分催化裂化汽油作为重整原料,既缓解了重整原料不足的情况,又解决了催化裂化中间馏分汽油硫含量高的问题。     

Master Design of 300 kt/a Vinyl Acetate Unit at Sichuan Vinylon Plant Passed Review

The master design of 300 kt/a vinyl acetate unit at the Sichuan Vinylon Plant has passed review, and construction of this unit will be kicked off soon. This project is a key associated project envisaged by the project for transmission of Sichuan gas to Eastern China, and its feasibility study report has been approved following the environment assessment conducted by the State Bureauof Environmental Protection in January 2008.     

The Simulated System of PX Unit Developed by LPEC Passed Appraisal

The simulated training system for the PX unit at ZhenhaiRefining and Chemical Company developed by LPEC haspassed the acceptance test.This system is an automatic simu-lation system comprised of automation,chemical process,computer technology and various physical and engineering     

国产RAX-2000A型吸附剂在芳烃装置上的应用

国产RAX-2000A型对二甲苯(PX)吸附剂在齐鲁股份有限公司烯烃厂64 kt/a芳烃联合装置上工业应用试验表明:RAX-2000A吸附剂性能稳定,优于国外同类吸附剂性能指标,而且吸附室压降保持较低,保证了装置的长周期运行。于2004年10月21日生产出纯度超过99.50%的PX产品。经过半年时间的平稳运行,于2005年4月在两个不同负荷下进行了标定,PX平均纯度和平均理论收率大大超过UOP提供的认证值和R IPP的保证值,经济效益显著。     

对二甲苯装置异构化单元热高压分离工艺研究

针对目前对二甲苯(PX)装置异构化单元普遍采用冷高压分离工艺导致装置用能不合理的现状,分析了采用热高压分离工艺的优势以及采用热高压分离工艺需要注意的问题;建立了能够准确分析异构化反应产物的分析方法,利用ASPEN PLUS流程模拟软件对热高压分离工艺过程进行了模拟计算,结果表明,采用热高压分离工艺对循环氢浓度几乎没有影响;通过热高压分离工艺的工业应用证明了该工艺是可行的;提出了采用热高压分离工艺后的对二甲苯装置能量优化匹配方案,并通过流程模拟进行了热量核算,结果表明采用新的流程可使370 kt/a的PX装置能耗下降627 MJ/t     

大型炼化一体化项目炼油加工方案的优化研究

目的 在国内某1 500×10⁴ t/a炼化一体化项目中新建100×10⁴ t/a乙烯裂解装置及80×10⁴ t/a对二甲苯装置,设计与原1 200×10⁴ t/a炼油项目及新建300×10⁴ t/a炼油改扩建项目相匹配。项目实施后,全厂柴汽比偏高,成品油总量偏多;乙烯裂解原料不足,且组分偏重;对二甲苯装置技术路线竞争力较弱,故需解决装置存在的上述问题。方法 确定300×10⁴ t/a炼油改扩建项目采用新增“220×10⁴ t/a柴油加氢裂化+260×10⁴ t/a连续重整”路线对炼油加工方案进行优化,以增产乙烯裂解及对二甲苯原料。结果 与优化前相比,全厂柴汽比由1.74降至1.00,成品油总量减少187.68×10⁴ t/a;乙烯裂解原料总量约降低1.74×10⁴ t/a,但乙烯产品量增加5.61×10⁴ t/a,乙烯裂解原料进一步轻质化;对二甲...     

Shanghai Coke Chemical Co. Kicked off Construction of 450kt/a Methanol Unit in Wujing

Shanghai Coke Chemical Company, Ltd. has kicked off the construction of a 450kt/a methanol unit in Wujing, Shanghai. This project will operate on coal, using a gasification unit licensed by GE coupled with an independently developed methanol unit. This project is slated for completion and startup by the end of 2007. Currently Shanghai Coke Chemical Company boasts two methanol units in Wujing with a total production capacity of 360 kt/a. Furthermore, Shanghai Coke Chemical Company intends to construct a 300kt/a methanol unit and a 600kt/a methanol unit in Shandong and Anhui, respectively.     

Maoming Company Completed the Construction of 1.0 Mt/a Ethylene Production Base

The core of the 1.0 Mt/a ethylene revamp project——the 640 kt/a steam cracking unit at SINOPEC Maoming Branch Com- pany after its mechanical completion in July 2006 has been in the phase of production preparations in a bid to boost the design ethylene capacity from 360 kt/a to 1.0 Mt/a to become the first in China 1.0-Mt/a-class ethylene base. The 1.0 Mt/a ethylene revamp project at Maoming Petrochemi- cal Co. covers 35 major design items, which include four grassroots units, namely a …     

Ningbo to Become an Important PTA Production Base in China

The Ningbo Mitsubishi Chemical Company, Ltd. located in the Daxie Development Area of Ningbo has installed and tested its first 600 kt/a PTA unit and intends to provide the unit with feedstock by the end of November 2006, and make test run of this unit in December and deliver the first batch of products in January 2007. This company after commissioning of the said unit will construct the second 1.0 Mt/a PTA unit, which will be located side by side with the first unit to make full use of the existing utilities, such as the berth and the power plant. Furthermore, the Yisheng Chemical Company located in the Qingsi Development Area of Ningbo after putting on stream the phase I project （a 660 kt/a PTA unit） in August 2005 will soon engage in the test operation of the phase II project （a 600 kt/a PTA unit）, which is expected to reach its full load in late December 2006. This company has stored enough paraxylene and acetic acid for the new PTA production line. This company plans to construct the third PTA production line to boost its production capability to 2.0 Mt/a, with its investment totalling 10 billion RMB. In consequence, Ningbo city will become an important PTA production base of China.     

20万t/a焦炉气制甲醇装置试车生产

由四川天一科技股份有限公司提供技术并承担全部工程设计的河北金牛旭阳化工有限公司20万t/a甲醇装置,自开车投产运行至今,安全稳定,效果良好。本装置充分借鉴和吸收了国内已运行的多套甲醇装置的经验和教训,进行了有针对性的改进和优化,具有工艺先进、技术成熟可靠、能耗低、三废少、产品质量高、连续运转周期长等特点,是到目前为止运行效果最好的一套焦炉气制甲醇装置。     

环丁砜抽提蒸馏工艺在惠州炼油芳烃联合装置的应用

环丁砜抽提蒸馏分离成套工艺(SED)在中海炼油化工有限责任公司惠州炼油分公司芳烃联合装置取得成功工业应用,标定及运转结果表明,该工艺技术先进,流程合理,各项技术指标均达到设计要求及合同的保证值。苯和甲苯质量达到了国家优级品标准,回收率分别达到了99.8%和99.9%。投资、能耗及物耗较国外同类技术显著降低。     

700 kt/a Ethylene Revamp Project Came on Stream at Lanzhou Petrochemical Co.

On November 20, 2006 the core unit of the 700 kt/a ethylene revamp project-the 460 kt/a ethylene unit-had been put on stream successfully at the first attempt at the Lanzhou Petrochemical Company. The proposal on setting up the 700 kt/a ethylene revamp project, including a 700 kt/a ethylene unit, a 200 kt/a LDPE unit, a 300 kt/a LLDPE unit, a 300 kt/a PP unit, a pyrogasoline hydrotreating unit and a butadiene extraction unit, has been approved by the State Council with the investment totaling around 7.0 billion RMB. The overall process technology of ethylene production has reached the first quartile level inside China. The ethylene unit has adopted the unique inside China de-ethanation technique, the online decoking technique, the advanced extraction tower technique and the short process scheme for hydrotreating before depropanization. The PP unit can make more than 100 grades of polypropylene, while the LDPE unit can manufacture 16 grades of PE.     

Yinguang Chemical Group Put on Stream the 24kt/a TDI Unit

The continued development of ethylene industry and petroleum refining sector has led to an growing output of C4 and C5 fractions as the byproducts. In order to fully utilize these resources, SINOPEC Beijing Research Institute of Chemical Industry （BRICI） has prepared the supported on silica catalysts composed of ZSM-5 and ZRP zeolites as the active components, which ,     

Nanjing to Construct a New 1.0 Mt/a Ethylene Project

The technical revamp of methylamine and DMF unit, in which the Jiutian Fine Chemicals Company in Anyang, Henan province had invested 10 million RMB in 2005, will be completed soon. The production capacity of both methylamine and DMF will reach 30 kt/a. In 2003 the Jiutian Fine Chemicals Company applied the proprietary technology of Hualu Co. ＂gas phase catalysis of methanol and liquid ammonia＂ and technology of one-step reaction with CO licensed by British KPT Co. to construct a 10 kt/a methylamine unit and a 10 kt/a DMF unit and put them on stream.     

荆门润滑油加氢改质装置的工程设计及工业应用

对荆门石化分公司100kt／a润滑油加氢改质装置的工程设计及工业应用进行总结。简要介绍生产方法、设计的技术特点、装置的工业运转及标定结果。以中间基原油为原料，采用润滑油溶剂精制与加氢改质组合工艺，生产出粘度指数大于120的高级润滑油基础油。     

重油催化裂化装置反-再系统构架及管道改造设计

作为炼厂装置的核心部分,重油催化裂化装置反应-再生系统管道设计一直是炼油厂管道设计的技术难点。针对中国石油大连石化1 400kt/a重油催化裂化装置反-再系统改造项目设计及施工中遇到的问题进行分析和总结,分别从反-再系统构架改造设计及管道改造设计两方面提出了解决方法和建议。     

Pre-commissioning of 120 kt/a Unit for Hydrotreating Crude Coke Oven Benzene Implemented at Baoyuan Chemical Company

The unit for manufacture of MTBE with co-production of butene-1 was successfully put on stream at Guangzhou Petrochemical Complex （GPC）. It is told that this is the first domestic unit that utilizes the refinery C4 fraction to make MTBE and butene-1. The existing 40 kt/a MTBE was retrofitted into the unit for manufacture of MTBE with co-production of butene-1,     

380 kt/a硫磺回收装置设计特点及试车总结

380kt/a硫磺回收装置是中化泉州石化有限公司12 000kt/a炼油项目的配套环保装置,采用国内自行研发的先进硫磺回收技术进行设计和试运行。简要介绍了该大型硫磺回收装置的设计特点及工艺流程,并对在开工试运行期间低负荷工况下出现的问题进行了分析总结,可为装置长周期平稳运行提供指导。试车结果表明:硫磺回收装置运行平稳,尾气中SO2的排放量符合国家环保部门的规定,生产的硫磺成品质量达到GB/T 2449-2006《工业硫磺》中规定的优等品级别,具有较好的环保效益和经济效益。     

用天然气制合成气代替ATR转化气优化乙炔尾气甲醇装置运行研究

四川维尼纶厂现有一套10万t/a的基于天然气蒸汽转化的甲醇合成装置和一套77万t/a的乙炔尾气甲醇合成装置。天然气蒸汽转化制备的合成气惰性气体含量低,氢含量高,而乙炔尾气甲醇装置ATR转化气惰性气体含量高。在深入分析两种合成气的特性的基础上,提出了以天然气制备的合成气替代乙炔尾气甲醇装置的ATR转化气,降低合成环路惰性气体含量、优化合成气气质、改善产品质量、提高甲醇产量的可工程实施的优化运行方案。     

Dow/Davy To License Low-pressure Butanol/Octanol Technology to China Lihuayi Group

China Lihuayi Group has selected the LPOxo~(SM)SELECTOR~(SM) (low-pressure butanol/octanol) technologyjointly licensed by Dow Chemical Company and Davy Pro-cess Technology Limited to be used on its new 250 kt/aunit.This unit is located in Dongying city,Shandong prov-ince with a design capacity rated at 140 kt/a octanol,85kt/a n-butanol and 24.4 kt/a iso-butanol,and the construc-tion of this unit is expected to be completed by 2010.