日本神户制钢UBC工艺的开发

介绍了日本神户制钢公司UBC改质褐煤工艺的开发过程及工艺原理,并对其技术特点进行了简单评述。     

带式炉褐煤提质工艺及经济性分析

介绍了山东能源枣矿集团柯林斯达公司研发的带式炉褐煤提质工艺及带式炉的结构特征和优点,结合该技术在蒙元煤炭公司30万t/a褐煤提质项目的应用情况,对褐煤提质生产数据和经济指标进行了分析,结果表明,采用带式炉后,原料褐煤全水分由35.59%降至5.88%(平均值);原煤低位发热量(收到基)由13.60 MJ/kg提升到23.7 MJ/kg,具有较好的经济效益。     

褐煤提质技术研究进展与展望

介绍了褐煤提质的必要性以及褐煤提质工艺的发展现状,列举了蓄热式无热载体旋转床干馏工艺、输运床气化炉(TRIGTM)、固体热载体煤热解工艺等几种提质干燥工艺流程及其特点;提出了我国褐煤干燥提质技术的发展方向。     

褐煤热解提质技术与多联产构想

以原褐煤质量为分类依据,根据褐煤原料的不同灰分含量,提出了不同的褐煤热解提质技术产品方案。主要介绍了国内外典型的褐煤热解提质技术,包括俄罗斯3TX(ETCh)-175、德国LR、美国LFC、中国多段回转炉、中国的BT、中国的DG等工艺。对褐煤热解技术与煤制甲烷、煤间接制油、煤制腐植酸和合成化工技术多联产进行了构想,为我国褐煤的洁净高效利用提供了参考和借鉴。     

褐煤干燥提质技术浅谈

介绍褐煤的基本性质和几种褐煤的干燥提质技术,如管式干燥技术、蒸汽流化床干燥技术(DWT法)、热脱水工艺和LFC褐煤干燥等,简单分析各工艺,展望褐煤干燥提质的前景.     

中国褐煤提质技术现状及发展趋势

介绍了国内外典型的褐煤干燥提质技术和褐煤干馏技术以及这两类技术的优缺点。阐述了中国褐煤提质市场和主要干馏工艺的发展建设现状,总结了中国褐煤提质工业的发展情况。2008_2012年,中国干馏提质项目明显增加,而干燥提质项目数量基本稳定,多用于坑口电厂的电煤干燥;2010年项目总量和投资额出现低点,2011年以后,中国褐煤提质项目投资额成倍增长。阐述了目前国内主要的褐煤干馏提质项目主要有国富GF褐煤提质工艺、LCC提质工艺、DG工艺直立炭化炉工艺、ZDL工艺等,并对各项目的应用情况进行对比。最后提出了中国褐煤提质技术的发展趋势主要为：减少褐煤直接燃烧,加大褐煤提质再利用;以褐煤干馏提质为主,辅以干燥提质;褐煤资源的多联产梯级利用逐步成为褐煤资源利用的主导;褐煤提质装备系统大型化将是褐煤综合利用系统装备开发的发展主流。     

褐煤制冶金焦的日本过程

到八十年代中期,澳大利亚的维多利亚省可能建立一个5000万美元、50吨/天的褐煤制冶金焦的工厂。此工厂将验证由日本财团(神户制钢、三菱化学和日商—岩井公司)在南非煤、油和气公司(Sou-     

浅析褐煤提质现状

褐煤提质可有效提高褐煤的质量及扩大褐煤的用途。针对国内褐煤提质技术的发展现状进行了分析,介绍了现在比较热的褐煤提质工艺,并对国内褐煤提质技术的发展趋势进行了探讨。     

浅析褐煤提质现状

褐煤提质可有效提高褐煤的质量及扩大褐煤的用途。针对国内褐煤提质技术的发展现状进行了分析,介绍了现在比较热的褐煤提质工艺,并对国内褐煤提质技术的发展趋势进行了探讨。     

褐煤成型技术研究现状

中国褐煤资源丰富,由于其煤质特点,利用褐煤时需要进行提质加工。褐煤提质加工技术众多,国内外的褐煤提质加工技术主要包括热解提质加工工艺、脱水提质加工工艺及成型提质加工工艺等。褐煤成型技术可根据用户的不同需求,通过特殊的工艺,克服原煤存在的缺陷,生产出质量优良的产品;解决了褐煤易自燃、水分含量高等对长距离运输及储存不利的问题,具有明显的经济效益和环境效益。综述国内外褐煤众多提质工艺中的成型技术现状,介绍具有代表性工艺技术的主要特点,对比分析了国内外褐煤成型工艺技术的主要指标,总结了褐煤成型工艺技术在中国今后的发展。     

日本褐煤直接液化工艺

日本的BCL工艺是目前世界上唯一针对褐煤开发并经过了工业性试验结果（PP）验证的褐煤液化工艺,是先进成熟的直接液化工艺之一。改进的BCL工艺,由于采用了多级反应模式、双组分煤浆溶剂、高效催化剂、在线加氢等技术,使工艺的油收率进一步提高。     

Change of combustion characteristics of Indonesian low rank coal due to upgraded brown coal process

Upgraded brown coal (UBC) process has been developed to produce a dry upgraded coal which is comparable with a bituminous coal. Differential thermal and thermogravimetry analyses (DTA–TG) have been applied to study the combustion characteristics of some Indonesian raw and upgraded coals produced by the UBC process. DTA–TG profiles of the entire combustion process can be used to predict the combustion performance of the pulverized coal in industrial furnaces. By using three samples of Indonesian low rank coals coming from Taban, Berau and Samaranggau, East Kalimantan, which have been upgraded by the UBC process, the ignition temperature (Tig) of the upgraded coals increased. Whereas the temperature, at which the maximum combustion rate occurs (Tmax), is not so changed. The DTA combustion peaks, which reflect the specific energy of coals, and the upgraded coals are significantly increased compared to those of raw coals.     

LCC低阶煤转化提质技术的开发与应用

介绍了在美国LFC技术基础上开发的LCC低阶煤转化提质技术的研发过程和应用进展;阐述了LCC技术的工艺方案、工艺流程、技术特点以及主要设备、产品性质和用途;总结了1 000 t/d LCC示范装置的试运行效果;分析了LCC低阶煤转化提质技术的工程应用前景。     

Prediction of coal liquefaction reactivity by solid state 13C NMR spectral data

A method for the deconvolution of ¹³C NMR spectra of coals has been developed by using coal-like model compounds and various lithotypes separated from Yallourn brown coal which is rich in various types of oxygen-functional groups. The spectrum of coal was resolved into 24 peaks which were classified into nine types of carbon-functional group. This analytical method can be applied to all ranks of coal from lignite to anthracite. In addition, the liquefaction data of seven kinds of coal collected from five different countries were obtained by the operation of 1 t/d process support unit and 150 t/d pilot plant NEDOL process liquefaction plants. A good correlation was obtained for every reaction product between structural data derived from solid state ¹³C NMR spectra and liquefaction data of coals. This means that the yields of liquefaction products could be predicted from ¹³C NMR spectral data of coal.     

壳牌煤气化装置之煤泥综合利用的试验及应用

河南龙宇煤化工有限公司正在运行的1套壳牌煤气化装置和正在安装的2台五环炉煤气化装置共产生煤泥220 t/d（设计排放量）,该公司采用高压、高浓度、长距离、全封闭的管道输送方式,将煤泥输送到公用工程锅炉内进行二次焚烧,以实现大型煤气化装置生产资源的综合利用。简述了煤泥综合利用系统的工艺设备和工艺流程;论述了该系统的创新特...     

日本的煤炭快速热解技术

为了开发独具特色的煤炭快速热解技术,日本先后建立了原料煤处理量分别为7t/d和100t/d的工艺开发和中间试验装置。大量的试验研究结果表明：1t高挥发分原料煤经过快速热解,大致可以得到低热值的17．87MJ/m^3的煤气1000m^3,半焦250kg、焦油70kg、苯类（主要是苯、甲苯及二甲苯）35kg,同时还可副产水蒸气约300kg。目前,中试研究仍在进行中。     

Effect of MgO addition to upgraded brown coal on ash-deposition behavior during combustion

The objectives of this study were the evaluation of the effect of MgO addition to coal on the reduction of ash deposition during upgraded brown coal (UBC) combustion, and the elucidation of the mechanisms of the reduction of ash deposition. The melting temperature of UBC ash is 1494 K, which is lower than that of bituminous coal ash. Before the actual ash-deposition experiments, the molten slag fraction in the UBC ash was estimated by means of chemical equilibrium calculations for various mixing mass ratios of MgO to coal ash. The simulation results indicate that MgO addition plays a role in decreasing the molten slag fraction. It was confirmed that Mg formed solid composites with Si, Fe, Al, Ca, and Mn, and played a role in decreasing the molten slag fraction in the ash on the tube. As a next step, ash-deposition tests were conducted using a pilot-scale pulverized coal combustion furnace equipped with a refractory wall. The results showed that MgO addition contributed to decreasing the rate of ash deposition even for UBC. These calculations and experimental results suggested that one of the reduction mechanisms due to MgO addition involved the production of solid-phase aluminosilicates.     

德国IGOR煤液化工艺及云南先锋褐煤液化

介绍了德国IGOR煤直接液化工艺和云南先锋褐煤在IGOR工艺200kg／d的PDU装置的试验结果．与其它煤直接液化工艺相比,IGOR工艺具有煤直接液化反应器的空速高、系统集成度高和油品质量好的特点．云南先锋褐煤在IGOR工艺200kg／d的PDU装置上的试验结果表明．先锋褐煤是适宜IGOR煤液化的煤种．得到的油收率为53％,油品中氮和硫的含量分别为2mg／kg和17mg／kg．煤液化油经过简单蒸馏可得到合格的0^#柴油,经过重整可得到合格的90^#无铅汽油．     

PRENFLO煤气化工艺的开发和应用

介绍了Prenflo煤气化工艺的开发过程,论述了Prenflo中试装置的工艺流程、气化煤种和试验结果;以西班牙Puertollano IGCC电站投煤量为2600t／d的Prenflo煤气化装置为例,总结了Prenflo气化工艺自1988年迄今的商业化运行情况;从气化炉结构、煤气流动方向、氧气纯度和原料粉煤细度等方面对Prenflo和Shell2种煤气化工艺进行了区别和对比。