重油催化裂化柴油加氢改质的研究

利用研制的柴油加氢改质催化剂,在200 mL小型单段串联加氢装置上,在反应温度365℃、反应压力8.0 MPa、体积空速1.5 h~(-1)、氢油体积比500:1的加氢工艺条件下,对蓝星石油有限公司大庆分公司重油催化裂化柴油进行加氢改质试验,加氢后的柴油十六烷值提高14.3个单位,柴油硫含量小于50μg/g。     

DZD-1柴油加氢精制催化剂的性能及工业应用

研制出以改性的国产γ-Al2O3为载体,以钨镍为活性组分的DZD-1柴油加氢精制催化剂,并通过了活性稳定性试验。以大庆石化公司炼油厂催化柴油和焦化柴油的混合油为原料,在氢分压8.0MPa、体积空速2.5h-1～2.7h-1、氢油比340:1～360:1、反应器床层平均温度327～380℃的工艺条件下,可生产出硫含量小于50μg·g-1的柴油。     

棕榈油制备生物柴油研究

通过利用浓硫酸作催化剂对酸值较高的棕榈油进行预酯化,采用正交实验的方法来研究预酯化的最优工艺条件,预酯化反应温度为70 ℃,反应时间为1.0 h,催化剂H2SO4的质量分数为1.0%,棕榈油的酸值降到2.4 mgKOH/g油.预酯化后的棕榈油与甲醇在氢氧化钾作为催化剂进行酯交换反应得到脂肪酸甲酯,采用正交实验的方法来研究酯交换反应的最优工艺条件,酯交换反应温度为60 ℃,反应时间为1.0 h,催化剂KOH的质量分数为1.0%,酯交换反应的转化率为95.89%,生物柴油总得率为95.6%.以棕榈油为原料制备的生物柴油,其主要性能符合柴油标准,但倾点较高,需与柴油馏分调合或加降凝剂以达到柴油标准.     

甲基叔丁基醚作助溶剂合成生物柴油研究

以地沟油为原料,测定了地沟油中水分和酸价,研究了助溶剂对催化地沟油制备生物柴油的影响,考察了助溶剂的用量、催化剂用量、反应温度、反应时间、对制备生物柴油的影响。结果表明:地沟油水分含量为3.75%,酸价为172mgKOH/g,甲基叔丁基醚作助溶剂可以显著提高生物柴油的转化率,地沟油油制备生物柴油最佳工艺条件是:反应温度75℃,催化剂用量为油量的5%,甲基叔丁基醚用量为油量的25%,反应时间为8h,在此条件下生物柴油的得率为95.91%。     

固体碱催化制备生物柴油的研究

以固体碱K2CO3/Al2O3为催化剂,对菜籽油和甲醇的酯交换反应进行了研究.实验结果表明该反应的最佳工艺条件为:反应温度50℃、催化剂用量4%、醇油摩尔比15:1和反应时间3h.在此条件下进行反应,生物柴油产率为98.62%.     

拖拉机漏油处理方法15例

1．喷油嘴回油 喷油嘴属于精密偶件,如果柴油机使用不清沽柴油或使用过久,就会因磨损而回油。为避免回油漏掉,可以通过回油管将油引回油箱,或引入柴油过滤器。如果回油管损坏,可用一截塑料管将油引入自备的容器,经过滤后再倒回油箱。     

重整预加氢精制催化剂的开发及工业应用

研制出以改性氧化铝为载体，以钴、钼、镍为活性金属组分的重整预加氢催化剂DZ-1A，并且通过了小试、中试、活性稳定性试验。以大庆石化公司炼油厂常顶汽油为原料，在反应压力1．25MPa、体积空速2．5h^-1、氢油体积比120：1、反应器平均温度271℃的工艺条件下，利用DZ-1A催化剂可生产出符合重整催化剂要求的汽油原料。     

从“油荒”看能源预警时代下的国际能源合作

<正>一、"油荒"的产生及原因剖析2007下半年以来,国际油价持续攀升,各地浮现以柴油紧张为表象的局部"油荒"征兆。2007年11月1日,发改委宣布上调成品油零售基准价,令"油荒"一度销声匿迹。但没过多久,各地就再度拉响成品油供应的警报,加油站外等候加油的汽车长龙见证着油荒的蔓延。     

煤焦油基合成柴油

根据我国能源结构煤多油少的特点和目前国内柴油市场供需矛盾日益尖锐的情况,本项成果以现代化焦化工业生产中煤焦油的210—300℃馏分段内的液体成分为对象,开发而成了新型的可以完全替代柴油应用的燃料。适用于以柴油机为动力的工业生产、交通运输和农业机械等领域,也可替代柴油用于以     

如何让生物柴油激情燃烧

受原料短缺、工艺难点、政策滞后等因素的影响,绿色能源生物柴油,任重道远。生物柴油是以大豆和油菜籽等油料作物、油棕和黄连木等油料林木果实、工程微藻等油料水生植物以及动物油脂、废餐饮油等为原料制成的液体燃料,是优质的石油柴油代用品,是典型的“绿色能源”。     

Brown＇s Blossom in Britain-China

The overall strategic relationship between U.K. and China is ＂better than ever＂, China- Britain relations have maintained good momentum, with increased high-level exchanges and the reinforcement of strategic mutual trust, with more room for growth in the future.     

Challenge and Opportunity Go Hand in Hand——What Global Economic Agitation Brings to the China's Economy?

Domino effects of the global finance agitation As the origin of the subprime crisis,US financial institutions lost USS45 billion last year,accounted for over half of the total US,EU & Japan loss.Since January 15th,Chtigroup released its financial statement of the 4th quarter,showing a net deficit of USS9.83 billion,which marked the hisoric high of its quarterly deficit.     

Sinosteel：Extraordinary Moves in Industry Chess

Among the Fortune 500 firms,more and more images from China emerge out.On the 2008 list,Sinosteel Corporation,a landmark group of China industries quietly squeezes into the candidate line.As the largest steel service ＆ trade enterprise,its sales reached at RMB 111.24 billion,with a year-on-year increase of 83.03 percent,and the profit grew by 180.03 percent.On the Sinosteel 2008 Work Meeting,the president Huang Tianwen uttered,＂In the coming year,we will work for US$20 billion sales,and look forward to getting a position in Fortune 500 firms for ourselves.＂     

Walk Through Unusual Five Years—— An Exhibitor＇s Canton Fair Course

When the 103rd Canton Fair is approaching, an old friend of Canton Fair, Li Ying from Jiangsu prov-ince recollected his past five years＇ experiences to the grand trade meeting. Each year is special, with some unforgettable memories colored by the year.     

Jean-Pierre Duprieu： Willing to Be A Legate of Sino-French Business

Estaing, former French president, Valery Giscard d＇Estaing attended Sino-French Economic Seminar held in Shanghai in early April and said that the world center has shifted from the west to the east with many European and US companies entering into Asia, and China has the ability to play an important role in the world stage. Estaing, naming himself＂French Confucian＂, then said in Chinese that a cook-group includes 10 people in ancient Chinese soldier system and the cook is in charge of cooking for them. And people who belong to the same cook are actually ＂Partners＂.     

China''''s Stock Market Wave

The annual meeting of the World Economy Forum was held in Davos,a little town in Switzerland,on January 23rd to the 27th this year,with the theme"the Power fo Collaborative Innovation",over 2500 celebrates from ture political and cconomic circles of more than 80 countries and challengred logether to talk about the future of the global economy in 2008,A Forum for the problems and challenges that face whole world,some of the keywords which drew attention during the event were:the U.S.subprime mortgage crisis,soaring energy prices,the economic slowdown in the U.S.ermerging economic bodies,authority funds and the general unpredictable nature of the global economy.     

Trade Promotion from Neighborhood

If you are considering to trade with companies in Japan or expanding your .business to Japan, we are ready to help from the very beginning.＂ You will find this greeting at the first sight on the Chinese website of Japan External Trade Organization （JETRO）. JETRO has committed itself in delivering highly efficient and quality services to meet the demand of internal and external customs including Japanese companies, hence winning a good reputation in the international trade arena. In recent years, with its priority in advancing business cooperation in South and East Asia, JETRO has made great achievement in promoting trade between China and Japan. Therefore, China＇s Foreign Trade interviewed Mr. Yoichi Maine, Deputy Director General of JETRO BEIJING.     

Auto Parts Market Potential Coming into Surface

Looking at the increasingly fierce competition in the world auto market. global automobile manufacturing industry, taking Europe, the U.S. and Japan as representatives, is gradually forming a new type of relationship, mutual cooperation between whole vehicle and parts manufacturers. We can clearly see that auto parts manufacturers have become independent from the whole vehicle manufacturing companies, which means that the former structure of auto industry has greatly changed, and a new relationship,     

Domino Effect on Electricity and Coal Prices

In the middle of last December, the key purchase contracts for coal used in power generation in 2008 were signed, reflecting a demand for more than 1.085 billion tons. It is important to note that the country＇s five biggest power producers, China Huaneng Group, China Guodian Corporation, China Power Investment Corporation, China Huadian Corporation and China Datang Corporation, had settled on the prices on their purchase contracts, and they are expected to consume 290 million tons of coal for generating electricity,     

Slimmed May Day Holiday

Last November the State Council of China decided to renew its holiday system by reducing the seven-day May Day holiday to three days and introducing three new one-day public holidays, namely the Qingming Festival, Dragon Boat Festival and Moon Festival. By doing so, the three golden-week holidays that were introduced in 1999, namely the Spring Festival, May Day and National Day, could be better distributed.