作业帮高分求英文翻译!（拒绝机器翻译）
来源：学生作业帮 编辑：拍题作业网作业帮 分类：综合作业 时间：2024/04/29 23:46:18
高分求英文翻译!（拒绝机器翻译）
石油危机的爆发,对世界经济造成巨大影响,随着人类大量使用矿物燃料带来的环境问题日益严重,各国政府开始关心重视生物质能源的开发利用.
玉米秸秆湿氧化预处理是生物乙醇燃料技术之一,它能保持秸秆原有骨架,防止纤维素破坏,使木质素,半纤维素和纤维素有效分离.从而得到高纯度的纤维素.本文研究了湿氧化预处理过程中温度,反应时间以及不同的碱缓和剂对实验的影响.同时讨论了不同条件下产物的酶水解情况.实验结果表明木质素的去除率与时间成正比,且保持在45％－60％之间.纤维素75％的平均得率明显地高于性质不稳定的半纤维素50％－60％的得率.酶转化纤维素百分率的最大量（86.4%）是在200℃,碳酸钠存在的碱性条件下处理8分钟获得的.
关键词：玉米秸秆 湿氧化 预处理 生物乙醇
石油危机的爆发,对世界经济造成巨大影响,随着人类大量使用矿物燃料带来的环境问题日益严重,各国政府开始关心重视生物质能源的开发利用.
玉米秸秆湿氧化预处理是生物乙醇燃料技术之一,它能保持秸秆原有骨架,防止纤维素破坏,使木质素,半纤维素和纤维素有效分离.从而得到高纯度的纤维素.本文研究了湿氧化预处理过程中温度,反应时间以及不同的碱缓和剂对实验的影响.同时讨论了不同条件下产物的酶水解情况.实验结果表明木质素的去除率与时间成正比,且保持在45％－60％之间.纤维素75％的平均得率明显地高于性质不稳定的半纤维素50％－60％的得率.酶转化纤维素百分率的最大量（86.4%）是在200℃,碳酸钠存在的碱性条件下处理8分钟获得的.
关键词：玉米秸秆 湿氧化 预处理 生物乙醇
The outbreak of the oil crisis,caused a tremendous impact on the world economy,with a large number of human use of fossil fuels the increasingly serious environmental problems,governments began to care about the development and utilization of biomass energy.
Pretreatment of corn stalks wetland is one of bioethanol fuel technologies,it can maintain the original skeleton straw to prevent the destruction of cellulose,lignin and hemicellulose and cellulose effective separation.To be high purity cellulose.In this paper,the pretreatment of wetlands in the course of temperature,reaction time and a different base to ease the impact of the experiment.At the same time discussed the different conditions of the hydrolysis of the situation.The results show that the removal of lignin and is proportional to the time and maintained at between 45% -60%.Cellulose 75 percent of the average yield significantly higher than that of the unstable nature of hemicellulose 50% -60% of the yield.Conversion of cellulose of the most substantial percentage (86.4 percent) in 200 ℃,the basic conditions of sodium carbonate dealt with under eight minutes obtained.
Key words:corn stalks wet oxidation pretreatment bioethanol
Pretreatment of corn stalks wetland is one of bioethanol fuel technologies,it can maintain the original skeleton straw to prevent the destruction of cellulose,lignin and hemicellulose and cellulose effective separation.To be high purity cellulose.In this paper,the pretreatment of wetlands in the course of temperature,reaction time and a different base to ease the impact of the experiment.At the same time discussed the different conditions of the hydrolysis of the situation.The results show that the removal of lignin and is proportional to the time and maintained at between 45% -60%.Cellulose 75 percent of the average yield significantly higher than that of the unstable nature of hemicellulose 50% -60% of the yield.Conversion of cellulose of the most substantial percentage (86.4 percent) in 200 ℃,the basic conditions of sodium carbonate dealt with under eight minutes obtained.
Key words:corn stalks wet oxidation pretreatment bioethanol