搜索结果: 61-75 共查到“知识库 颗粒学”相关记录90条 . 查询时间(4.844 秒)
利用胶质气体泡沫分离细微颗粒
胶态气体 分离技术 浮选技术 表面活性剂
2009/3/5
This paper presents a method of separation of fine particles, of the order of a few microns or less, from aqueous media by flotation using colloidal gasaphrons (CGAs) generated in aqueous solutions....
vertical rectangular conduit. Experimental results show that heat transfer of gas carrying evaporation is enhanced and the superheat of liquid in contact with heating surface lowers remarkably by in...
Previous works have shown that the suction probe cannot be used to accurately measure the upward and downward particle fluxes independently. A new method using a single optical probe to measure the lo...
内构件存在时提升管内流动及颗粒混合行为研究
riser internal hydrodynamics
2009/3/4
The hydrodynamics and solids mixing behavior in a riser with blunt internals are studied. A uniformradial distribution for solids fraction and particle velocity achieves near the internals. The turb...
A computational model combining large eddy simulation with quadrature moment method was employed to study nanoparticle evolution in a confined impinging jet. The investigated particle size is limited ...
Based on analysis of energy dissipation in the core region of gas-solid fluidized bed risers, a simplified model for determination of core-annulus solids mass transfer coefficient was developed accord...
In order to understand the interaction between large-scale vortex structure and particles, a two-waycoupling temporal mixing layer laden with particles at a Stokes number of 5 with different mass lo...
A new gas clean-up process called "integrated sintered metal screen moving granular bed" (ISMSMGB) for the integrated gasification combined cycle (IGCC) and pressured fluidized bed combustion (PFBC) ...
The coking observation and particle flow behaviour in both thermal plasma and cold plexiglas downers were investigated in a binary particle system formed by injecting coarse inert particles (carrying ...
Lateral solid mixing was investigated experimentally in the dense zone of a 900mm×100mm× 5.2m rectangular circulating fluidized bed riser. Using heated tracer injection, the lateral solid dispersion ...
The cell model developed since 1950s is a useful tool for exploring the behavior of particle assemblages,but it demands further careful development of the outer cell boundary conditions so that inte...
用喷雾干燥方法制造具有指定特性的颗粒
喷雾干燥 制造方法 颗粒 干燥器
2009/2/23
Spray drying is an important continuous industrial process for drying pumpable liquid formulations irrespective of their heat sensitivity, rheology, solids content and processing rate. Furthermore sp...
固体脂质微颗粒表面稳定剂的分布状况对其稳定性的影响：介观模拟与实验
耗散粒子动力学 介观模拟 稳定剂 固体脂质微颗粒
2009/2/10
用耗散粒子动力学（DPD）方法研究了稳定剂在负载布洛芬的固体脂质微颗粒（solid lipid microparticles, SLM）表面的分布状况。模拟结果表明：以卵磷脂为稳定剂，当布洛芬的摩尔分数为1%和2%时，卵磷脂较好地包覆在颗粒的表面；而当布洛芬的摩尔分数增大到3%和5%时，卵磷脂不能覆盖在布洛芬分子密集的部位。以poloxamer 407和PVA为稳定剂，随着布洛芬摩尔分数由1%增大...
谷壳气化过程中颗粒物理化学结构的演化
颗粒 物理化学 谷壳气化
2009/2/10
对生物质气化过程的研究通常着眼于对气相组分分析，而很少对颗粒相的演化进行探讨。本文通过氮气等温吸附/脱附法(-196℃)、压汞法(414 MPa)、真密度仪(He)等详细研究了在气化条件下谷壳的物理结构的演化，同时利用元素分析和傅里叶红外对颗粒化学结构进行分析。结果表明，在气化的不同阶段，颗粒内孔的结构发生改变。BET比表面积在反应开始时增加缓慢，当反应率达到0.6以后其增加速度明显加快。由压汞法...