<div dir="ltr"><div dir="ltr"><div dir="ltr">Here are some more rice hull compositions:<div><br></div><div>Jenkins BM; Baxter, LL; Miles, TR Jr.; Miles, TR. 1998. Combustion properties of biomass.  Fuel Processing Technology 54:17-46 <br clear="all"><div><br></div><div><div><span style="white-space:pre">       </span>        Rice husk <span style="white-space:pre">       </span>Rice straw</div><div>Higher heating value (constant volume)</div><div>MJ/kg <span style="white-space:pre"> </span>15.84 <span style="white-space:pre">       </span>15.09</div><div>Btu/lb <span style="white-space:pre">  </span>6811.00 <span style="white-space:pre">     </span>6486.00</div><div>Proximate analysis (% dry fuel)</div><div>Fixed carbon <span style="white-space:pre">    </span>16.22 <span style="white-space:pre">       </span>15.86</div><div>Volatile matter<span style="white-space:pre">  </span>63.52<span style="white-space:pre">        </span>65.47</div><div>Ash <span style="white-space:pre">     </span>20.26<span style="white-space:pre">        </span>18.67</div><div><span style="white-space:pre"> </span>100.00 <span style="white-space:pre">      </span>100.00</div><div>Ultimate analysis (% dry fuel)</div><div>Carbon <span style="white-space:pre">    </span>38.83<span style="white-space:pre">        </span>38.24</div><div>Hydrogen <span style="white-space:pre">        </span>4.75<span style="white-space:pre"> </span>5.20</div><div>Oxygen (diff.)<span style="white-space:pre">    </span>35.47<span style="white-space:pre">        </span>36.26</div><div>Nitrogen <span style="white-space:pre">        </span>0.52 <span style="white-space:pre">        </span>0.87</div><div>Sulphur <span style="white-space:pre">  </span>0.05 <span style="white-space:pre">        </span>0.18</div><div>Chlorine <span style="white-space:pre"> </span>0.12 <span style="white-space:pre">        </span>0.58</div><div>Ash <span style="white-space:pre">      </span>20.26 <span style="white-space:pre">       </span>18.67</div><div><span style="white-space:pre"> </span>100.00 <span style="white-space:pre">      </span>100.00</div><div>Elemental composition of ash (%)</div><div>SiO2 <span style="white-space:pre">    </span>91.42 <span style="white-space:pre">       </span>74.67</div><div>Al2O3 <span style="white-space:pre">   </span>0.78 <span style="white-space:pre">        </span>1.04</div><div>TiO2 <span style="white-space:pre">                             </span>0.02 <span style="white-space:pre">        </span>0.09</div><div>Fe2O3 <span style="white-space:pre">    </span>0.14 <span style="white-space:pre">        </span>0.85</div><div>CaO <span style="white-space:pre">      </span>3.21 <span style="white-space:pre">        </span>3.01</div><div>MgO <span style="white-space:pre">      </span><0.01 <span style="white-space:pre">    </span>1.75</div><div>Na2O<span style="white-space:pre">      </span>0.21 <span style="white-space:pre">        </span>0.96</div><div>K2O <span style="white-space:pre">      </span>3.71 <span style="white-space:pre">        </span>12.30</div><div>SO3 <span style="white-space:pre">     </span>0.72 <span style="white-space:pre">        </span>1.24</div><div>P2O5 <span style="white-space:pre">     </span>0.43 <span style="white-space:pre">        </span>1.4</div><div>CO2 / other<span style="white-space:pre">                </span></div><div>Total<span style="white-space:pre"> </span>100.64<span style="white-space:pre">       </span>100</div><div>Undetermined<span style="white-space:pre">       </span>0.64<span style="white-space:pre"> </span>2.68</div><div><br></div></div><div><br></div><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Julien Winter<br>Cobourg, ON, CANADA<br></div></div></div></div></div></div></div></div></div></div>