Exposure blending is similar to HDR in the respect it is increasing the dynamic range of the image but it is a different process.
To start open up your chosen raw image in ACR. You want to make adjustments that affect the sky, mid ground, foreground. Or you can concentrate of highlights, mid tones, and shadows. Play around with exposure, shadows, whites, blacks etc and then for further control move into your luminosity panel.
In here you can control certain aspects through color. For example the sky may be too light so I slide my blue slider down to darken.