Simulation Study of Biomass Gasification [PDF]
, 2016 生物质气化是生物质利用过程中热效率较高的一种方法，同时也是一种十分重要的可再生能源利用方式。本文采用AspenPlus模拟软件，结合吉布斯自由能最小原理，建立了生物质气化反应器模型，模拟研究了不同操作参数对气化结果的影响，同时对三种气化剂下的气化结果进行了对比分析。 在三种气化剂的模拟结果中，同一操作参数对气化结果的影响有一定共通性：（1）随着气化温度的升高(600～900℃)，一氧化碳体积分数升高，二氧化碳和甲烷体积分数降低，但氢气体积分数变化不大；气体的热值升高（700℃以上），气体产率先升高后降低，
曹斌奇
core
Study on the detection of tetracycline by electrochemical sensors modified with nanomaterials [PDF]
Tetracycline (TC) is a typical broad-spectrum antibiotic with extensive applications in fields such as food and medicine. However, its improper use can pose a threat to human health and environmental safety.
CHEN Qijie +6 more
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An assessment of future rewilding potential in the United Kingdom
Conservation Biology, Volume 38, Issue 4, August 2024.Abstract Restoring ecosystems is an imperative for addressing biodiversity loss and climate change, and achieving the targets of the Kunming–Montreal Global Biodiversity Framework. One form of restoration, rewilding, may have particular promise but may also be precluded by requirements for other forms of land use now or in the future.
C. Brown, R. Prestele, M. Rounsevell
wiley +1 more source
Global status, impacts, and management of rocky temperate mesophotic ecosystems
Conservation Biology, Volume 38, Issue 1, February 2024.Abstract The ecology and function of rocky temperate mesophotic ecosystems (TMEs) remain poorly understood globally despite their widespread distribution. They typically occur at 20–150 m (the limit of photosynthesis), and on rocky substratum they support rich benthic communities and mobile fauna.
James J. Bell +5 more
wiley +1 more source
Study on catalytic conversion of Dunaliella salina and microcrystalline cellulose into biofuels and chemicals [PDF]
, 2012 本研究课题以杜氏盐藻生物质和微晶纤维素作为研究对象，对其催化转化制取生物质燃料和化学品进行研究，主要结果如下： (1)杜氏盐藻裂解过程中，适量的二氧化碳气氛有助于提高裂解液体产率。在此基础上，对裂解废弃物充分回收利用，不仅可以减少CO2排放，还可以获得氢气。将杜氏盐藻500℃裂解后的固体残炭，与混合气（CO2:N2=1:2）在固定床反应器中进行反应。研究发现，无水蒸气和催化剂的情况下，CO2转化率和CO产率随温度升高而增加，反应温度升到700℃时，分别达到了13.75%和0.19mol/(molCO2)。
杨超
core
The promotion mechanism of how biochar affects the reclaimed soil microbial carbon sequestration capacity in coal mining areas [PDF]
Biochar application is a key measure for enhancing soil quality. However, the impact of biochar applications on the reclaimed soil for improvement on soil physicochemical properties, enzyme activity and microbial diversity is still unclear, especially ...
Fu CHEN +5 more
core +1 more source
Shuitu Baochi Xuebao, 2022 为探究红薯藤及其生物质炭还田对旱地红壤微生物活性及养分含量的影响, 通过田间定位试验, 设置5个处理: (1)常规处理(CK); (2)3 000 kg/hm2红薯藤还田(S1);(3)6 000 kg/hm2红薯藤还田(S2);(4)1 000 kg/hm2红薯藤生物质炭还田(BC1);(5)2 000 kg/hm2红薯藤生物质炭还田(BC2), 研究不同剂量红薯藤及其生物质炭还田对红壤微生物活性和养分含量的影响。结果表明: 与CK相比, 在0—10 cm土层中, BC1的土壤基础呼吸增加17.93%,
郜茹茹 +6 more
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Production of bio-oil by pyrolysis from eucalypt sawdust [PDF]
, 2011 生物质能作为可再生能源，对其综合开发利用有助于解决能源短缺和环境污染问题。生物质热裂解技术可以将生物质能转化为高品质的燃料或高附加值的化工产品，有利于缓解我国能源短缺，提高生物质能的利用效率，改善我国以化石燃料为主的能源生产和消费结构。 本研究根据生物质热裂解的相关技术和原理，自行设计了一套小型的生物质热裂解系统，该套系统包括了进料部分、反应器部分、产品收集部分、测试与控制部分、惰性气体供应部分等五大部分组成。 利用自行设计和研制的小型生物质热裂解反应器，以桉树木屑等生物质为原料 ...
张博
core
Effects of Chemical Fertilizer Reduction Combined with Straw and Organic Fertilizer Application on Soil Acidification Mitigation and Erosion Control [PDF]
[Objective] To demonstrate that appropriate application of straw and organic fertilizer can effectively improve soil quality, have a positive effect on soil acidification mitigation and erosion control.
CAO Yunfei +9 more
core +1 more source
Shuitu Baochi Xuebao, 2022 试验研究了不同筛分方法下生物质炭施用对土壤团聚体的影响,为生物质炭农业利用提供理论依据。设置生物质炭用量4个水平(0,10,20,30 t/hm2),氮肥用量2个水平(0,150 kg/hm2),通过2年田间定位试验,测定分析干筛法和湿筛法0—30 cm土层土壤团聚体分布及稳定性。结果表明:2种筛分方式下,不同处理各粒级土壤团聚体分布趋势基本一致,干筛法所得机械土壤团聚体主要以＞5,2~5 0.5~1 mm粒级为主,而湿筛法水稳性团聚体均以0.25~0.5 mm及＜0.25 mm为主 ...
杨卫君 +5 more
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