来自可再生、可持续发展的森林资源是实现生物质精炼化的基础;森林工业中有发展潜力、对生物质精炼有巨大包容性、有强大物质基础的制浆造纸业是实现生物质精炼化基础的基础。发展生物质燃料以替代石化燃料,减少温室气体排放,改善全球...来自可再生、可持续发展的森林资源是实现生物质精炼化的基础;森林工业中有发展潜力、对生物质精炼有巨大包容性、有强大物质基础的制浆造纸业是实现生物质精炼化基础的基础。发展生物质燃料以替代石化燃料,减少温室气体排放,改善全球的生态环境,是瑞典和芬兰实现生物质精炼化的主要目的。Chemrec公司在瑞典Pitea公司下属的Smurfit Kappa浆纸厂中建造并于2010年9月正式投产的黑液气化制造生物质燃料二甲醚的示范工厂,以及由著名的供电供热能源公司Fortum在芬兰Joenssu的CHP热电厂中建造一座完全商业化的最新的快速热解技术生产生物质油的车间。这两个范例表明:前者Chemrec是在挖掘制浆造纸业生物质精炼的内在潜力;后者则表明,在浆纸厂厂区内的C H P中,同样有采用最新的快速热解制造生物质油直至高级燃料的条件,这就突显了浆纸厂的多面性和包容性。展开更多
Poplar powder co-refined with soybean oil or fatty acid methyl esters in supercritical methanol in a high-pressure autoclave was studied to verify the promotion of poplar powder liquefaction and decomposition by oils ...Poplar powder co-refined with soybean oil or fatty acid methyl esters in supercritical methanol in a high-pressure autoclave was studied to verify the promotion of poplar powder liquefaction and decomposition by oils & fats and methyl esters in the present work. It was shown that the decomposition rate of poplar powder was improved by the fatty acid methyl esters as well as the soy bean oil, and the efficiency of the latter was higher than the former. Further study showed that the decomposition rate of cellulose, hemicellulose and lignin was all improved by co-refining, while the relative decomposition rate of lignin increased most remarkably. After vacuum distillation under mild condition, the light components of the liquid products from biomass co-refining were removed, and then petroleum ether was used to separate the remains into two parts, viz.: the bio-light oil mainly composed of the derivatives of oils and fats and the bio-heavy oil mainly composed of poplar powder liquefaction products. When more unsaturated oils and fats were used in the biomass co-refining, more products in the boiling range of diglycerides were produced, which were mainly contained in the bio-light oil obtained from the condensation of oils and fats derivatives with the poplar powder liquefaction products. The yield of the bio-heavy oil originating from the biomass co-refining is far more than that from the direct liquefaction of poplar powder in supercritical methanol, with the possible reasons analyzed in the article.展开更多
文摘来自可再生、可持续发展的森林资源是实现生物质精炼化的基础;森林工业中有发展潜力、对生物质精炼有巨大包容性、有强大物质基础的制浆造纸业是实现生物质精炼化基础的基础。发展生物质燃料以替代石化燃料,减少温室气体排放,改善全球的生态环境,是瑞典和芬兰实现生物质精炼化的主要目的。Chemrec公司在瑞典Pitea公司下属的Smurfit Kappa浆纸厂中建造并于2010年9月正式投产的黑液气化制造生物质燃料二甲醚的示范工厂,以及由著名的供电供热能源公司Fortum在芬兰Joenssu的CHP热电厂中建造一座完全商业化的最新的快速热解技术生产生物质油的车间。这两个范例表明:前者Chemrec是在挖掘制浆造纸业生物质精炼的内在潜力;后者则表明,在浆纸厂厂区内的C H P中,同样有采用最新的快速热解制造生物质油直至高级燃料的条件,这就突显了浆纸厂的多面性和包容性。
基金supported by the SINOPEC Corporation (No. S113077)
文摘Poplar powder co-refined with soybean oil or fatty acid methyl esters in supercritical methanol in a high-pressure autoclave was studied to verify the promotion of poplar powder liquefaction and decomposition by oils & fats and methyl esters in the present work. It was shown that the decomposition rate of poplar powder was improved by the fatty acid methyl esters as well as the soy bean oil, and the efficiency of the latter was higher than the former. Further study showed that the decomposition rate of cellulose, hemicellulose and lignin was all improved by co-refining, while the relative decomposition rate of lignin increased most remarkably. After vacuum distillation under mild condition, the light components of the liquid products from biomass co-refining were removed, and then petroleum ether was used to separate the remains into two parts, viz.: the bio-light oil mainly composed of the derivatives of oils and fats and the bio-heavy oil mainly composed of poplar powder liquefaction products. When more unsaturated oils and fats were used in the biomass co-refining, more products in the boiling range of diglycerides were produced, which were mainly contained in the bio-light oil obtained from the condensation of oils and fats derivatives with the poplar powder liquefaction products. The yield of the bio-heavy oil originating from the biomass co-refining is far more than that from the direct liquefaction of poplar powder in supercritical methanol, with the possible reasons analyzed in the article.
