富氢气体样品组分的定量和定性分析对于指导超临界生物质气化制氢实验研究非常重要。在GC-900 A 气相色谱仪中应用了Porapak-Q型填充柱,以氩气做载气、TCD热导为检测器,采用面积校正归一化法,成 功地分析出了超临界生物质气化制氢实验...富氢气体样品组分的定量和定性分析对于指导超临界生物质气化制氢实验研究非常重要。在GC-900 A 气相色谱仪中应用了Porapak-Q型填充柱,以氩气做载气、TCD热导为检测器,采用面积校正归一化法,成 功地分析出了超临界生物质气化制氢实验混合气体样品中的H2、CO、CH4、CO2等4种主要组分。该方法 快速、简单、成本低,满足了以制氢为目的的实验要求。展开更多
Supercritical antisolvent (SAS) process is a recently developed technology to produce micro- and nano particles. This paper presents a continuous apparatus to conduct experiment of SAS process. With the apparatus, the...Supercritical antisolvent (SAS) process is a recently developed technology to produce micro- and nano particles. This paper presents a continuous apparatus to conduct experiment of SAS process. With the apparatus, the effects of pressure, temperature and flow ratio of CO2 to the solution on the shape and size of particles are studied for the quercetin-ethanol-CO2 system. Spherical quercetin microparticles with diameters ranging form 1 μm to 6μm can be obtained while ethanol is used as organic solvent. The most effective fact on the shape and size of particles is pressure, the next is temperature and the last is the flow ratio of CO2 to solution.展开更多
文摘富氢气体样品组分的定量和定性分析对于指导超临界生物质气化制氢实验研究非常重要。在GC-900 A 气相色谱仪中应用了Porapak-Q型填充柱,以氩气做载气、TCD热导为检测器,采用面积校正归一化法,成 功地分析出了超临界生物质气化制氢实验混合气体样品中的H2、CO、CH4、CO2等4种主要组分。该方法 快速、简单、成本低,满足了以制氢为目的的实验要求。
文摘Supercritical antisolvent (SAS) process is a recently developed technology to produce micro- and nano particles. This paper presents a continuous apparatus to conduct experiment of SAS process. With the apparatus, the effects of pressure, temperature and flow ratio of CO2 to the solution on the shape and size of particles are studied for the quercetin-ethanol-CO2 system. Spherical quercetin microparticles with diameters ranging form 1 μm to 6μm can be obtained while ethanol is used as organic solvent. The most effective fact on the shape and size of particles is pressure, the next is temperature and the last is the flow ratio of CO2 to solution.