  We present various order moments (Variance ($\sigma^2$), Skewness($S$),
Kurtosis($\kappa$)) of net-proton multiplicity distributions in Au+Au
collisions from the first phase of RHIC beam energy scan ({\sNN}=7.7$-$200
GeV). The measurements are carried out by the STAR detector at mid-rapidity
($|y|<0.5$) and within transverse momentum range $0.4<p_{T}<0.8$ {\gevc}. The
product of moments ({\SD} and \KV) are predicted to be sensitive to the
correlation length and connected to ratios of baryon number susceptibility. We
observe deviations below Poisson expectations in the most central collisions
for all of the energies. These results are compared with a transport model to
understand the effects not related to critical physics. We also discuss the
error estimation methods and the techniques to suppress centrality resolution
effect in the moment analysis.
