浅析江联公司对甘蔗渣锅炉的开发设计

文章介绍了28t/h、40t/h燃蔗渣锅炉的设计思路、结构特点、汽水流程特点、冷热风管道系统,锅炉验收成功也标志着江联公司的设计制造技术及IS09001质量管理水平达到了较高的国际水准.     

基于甘蔗渣的生物降解材料研究(Ⅰ)甘蔗渣的液化反应和聚醚酯多元醇的制备

通过对甘蔗渣液化反应的研究。以探索一种甘蔗渣新的利用方法。在以硫酸为催化剂的条件下讨论了液化试剂，液固比及反应温度等因素对甘蔗渣液化反应的影响。结果表明，甘蔗渣在PEG#400中的液化率可达到96%，而且其中的木质素全部被液化，所得液化物为聚醚酯多元醇，羟值为280mgKOH/g-380mgKOH/g，能满足中强度硬质聚氨酯泡沫的要求。     

Biogas generation from bagasse-based paper mills by anaerobic digestion

Bagasse-based paper mills in developing countries do not have sophisticated waste water treatment technology to combat water pollution released by these mills. This paper presents an overview of bagasse handling and sources of waste generation, the seriousness of pollution discharge, and treatment options available to tackle the waste water derived from bagasse-based paper mills. Extensive laboratory treatability studies indicate that anaerobic digestion for biogas generation is a viable method for handling bagasse-based paper mill wastes. The waste water was treated at an organic loading of 0.8 kg BOD m^?3 day^?1 and 1.6 kg COD m^?3 day^?1 and a detention time of 10 days, achieving 90% reduction in BOD and COD without supplementation of any nutrients. With a yield coefficient of 0.5, the average quantity of cells produced per day was calculated to be 1.683 kg day^?1 or 0.25 kg cells produced kg^?1 BOD removed. Intermittent checking on excess alkalinity in the anerobic system is necessary for achieving maximum treatment efficiency.     

甘蔗斑点象的发生与防治研究

本文介绍了甘蔗斑点象的发生和为害情况，形态特征，生活习性，发生规律，发生与生态条件的关系，提出了经济有效的防治办法。     

Dilute mixed-acid pretreatment of sugarcane bagasse for ethanol production

Integral utilisation of bagasse is a high priority for the diversification of the sugarcane industry. The application of a biorefinery philosophy to bagasse utilisation requires its fractionation into its main components: cellulose, hemicelluloses and lignin. The first stage in that process is the pretreatment, in which a considerable part of hemicelluloses is solubilised, and cellulose is activated towards enzymatic hydrolysis. In this work, a pretreatment method using a mixture of sulfuric and acetic acid is investigated. Two different solid-to-liquid ratios (1.5:10 and 1:10) were used in the pretreatment. Both conditions efficiently hydrolysed the hemicelluloses giving removals above 90%. The extractive components were also effectively solubilised, and lignin was only slightly affected. Cellulose degradation was below 15%, which corresponded to the low crystallinity fraction. The analysis of the morphology of pretreated bagasse confirmed the results obtained in the chemical characterization.     

水蒸气氛围下甘蔗渣热解气化条件的研究

在试验条件下，考察反应温度、升温速率、物料颗粒大小等因素对蔗渣在水蒸气中的热解气化特性的影响。试验结果表明，热解终温越高，物料粒径越小，越有利于产生高质量的热解气。热解终温是热解气化过程主要的决定因素，在先到达热解终温，再通入水蒸气的操作条件下，升温速率的改变对气化效果的影响并不突出。试验在最佳条件(采用粉末物料，在1000℃下进行热解)下，可以得到高热值(10MJ／m^3)合成气和较高的产气率(1．7m^3／kg)。     

福建省甘蔗新品种区域试验研究

通过2001～2002年2年(2新1宿)6个地点的区域试验，参试的甘蔗新品种中闽糖86—2121。粤农91—854表现出高产。稳产、适应性较广的特点，蔗茎产量比闽糖70—611增少达极显著水平，与闽糖86—05增少(或减少)不显著，含糖量比闽糖70—611增少21．82％和12．86％，比闽糖86—05增少0．41％和减少6．98％，适宜于福建蔗区示范推广。闽糖93—246蔗茎产量比闽糖70—611增少不显著，比闽糖86—05减少达显著水平，适应性一般，宿根性较差，含糖量比闽糖70—611增少9．86％，比闽糖86—05减少9．46％，可保留区试。粤C25、福农93—3608蔗茎产量比闽糖70—611减少达不显著和显著水平，比闽糖86—05减少达极显著水平、适应性广，稳产性一般，含糖量比2个对照种都有不同程度的减少，不适宜在福建蔗区示范推广。     

奥特有机微肥在甘蔗上应用效果研究

与施用等量有效Ｎ、Ｐ、Ｋ成分的化学肥料比较，甘蔗施用奥特肥时，在生长中后期甘庶叶的Ｎ、Ｐ、Ｋ含量和总叶绿素含量较高，产量构成性状较好，蔗茎产量显著较高，而糖锤度差异不大。     

几个国外甘蔗引进种的试验表现及利用价值分析

云南甘科所近年从国外引进一大批甘蔗新品种(系)，2002年与当地主栽品种桂糖11号进行正规品比试验，参试的7个品种(系)在出苗、分蘖、生势、蔗产量、糖分和含糖量皆表现出较大的差异。对试验结果进行综合分析，早熟或特早熟种有Mex73／523和FR93／435，中熟种有Mex57／473和CP85／1308，中晚-晚熟种有FR93／873、FR93／1054和FR93／344。     

A study on the recovery of xylitol by batch adsorption and crystallization from fermented sugarcane bagasse hydrolysate

Xylitol was recovered from fermented sugarcane bagasse hemicellulosic hydrolysate by adsorption and crystallization procedures. Silica gel adsorption was employed to purify the broth containing xylitol. In this step, different mixtures of the solvents ethyl acetate, ethanol and acetone were used as eluent, and different proportions of fermented broth volume incorporated per gram of silica gel (V_b/M_sg, varying from 1.0 to 2.0 cm³ g^?1) were used to pack the column employed as stationary phase bed. The xylitol purification efficiency varied for each mixture of solvent, and for each V_b/M_sg ratio used. The purified broth was submitted to different crystallization procedures (cooling, concentration and supplementation with commercial xylitol) aiming to recover xylitol crystals. The best result (60% crystallization yield and 33% total recovery of xylitol from fermented broth) was obtained when the column was packed with a V_b/M_sg ratio of 2 cm³ g^?1, and the broth was purified with a mixture of ethyl acetate and ethanol, concentrated 6.5‐fold, and supplemented with commercial xylitol to force the precipitation. Copyright © 2006 Society of Chemical Industry