We report quantitative composition data on continuous jet-mixing of ethanol with ambient carbon-dioxide (CO₂) at temperatures (T=[313 K–333 K]) and pressures (p=[9 MPa to 11 MPa]) in the vicinity of the mixture critical pressure of the binary system. Progress of mixing is quantified simultaneously on the macro- and on the micro-scale. The lag between mixing on both scales is quantified spatially resolved and in the jet-mixing region. We found that surprisingly mixing below the mixture critical pressure in the two-phase mixing regime can be more efficient than mixing above the mixture critical pressure in the single-phase mixing regime. Density was the key parameter influencing the mixing efficiency.

我们报告了在附近温度（T = [313 K–333 K]）和压力（p = [9 MPa至11 MPa]）下乙醇与环境二氧化碳（CO ₂）连续喷射混合的定量组成数据二元系统的混合临界压力。同时在宏观和微观上量化混合的进度。在两个尺度上的混合之间的滞后在空间上被量化并且在射流混合区域中被量化。我们发现，出人意料的是，在两相混合方案中低于混合物临界压力进行混合比在单相混合方案中高于混合物临界压力进行混合更有效。密度是影响混合效率的关键参数。