Steam Reforming Bio-oil Pyrolysis

In recent years,the burning of fossil fuels has caused serious environmental probl ems,so the development of new energy has attracted much attention.the advantages o f low sulfur and zero carbon emission have attracted the attention of many scholars.A s one of the biological oils derived from biomass energy,jatropha oil owns the advant ages of large density,convenient to transport and storage,and it is gradually developin g towards industrialization.Laterite nickel ore in spite of the reserves,but the processi ng cost is higher,over nickel sulfide ore mining cannot meet the needs of the current,brown laterite nickel ore iron type gradually into people's horizons because of the nick el grade is low.In this paper,laterite nickel ore catalytic reforming jatropha oil steam reforming hydrogen production so as to realize the multiple application of renewable e nergy,save resources to protect the environment is significant.In spite of abundant res erves,the red earth nickel mine has a low grade of nickel and high processing cost,wh ich can not be paid enough attention in the long term.First,jatropha oil pyrolysis process using thermal gravimetric analysis,and comb ining with the TG/DTG curves of jatropha oil,the activation energy of pyrolysis stage calculated small jatropha oil roughly about 294.14³49.47 kJ/mol.In addition,the experimental study on the hydrogenation of jatropha oil vapor in a fixed bed reactor was carried out.And gas production from the test was analysis by Gaschromatographic.It is concluded that the best reaction conditions as follows:react ion temperature is 750?,the quality of the space velocity of 8.7 h1,water/carbon rati o is 3.09,the quality of the catalyst is 0.1 g,selectivity of carbon on the best experime ntal conditions reached 82%,H₂ yield reached 52.16%.Then the catalytic activity of brown laterite nickel ore iron type components for v alidation,as a result of the laterite nickel ore mainly of iron compounds?goethite?,bro wn laterite nickel ore after calcining type mainly of iron oxide,after reduction is the main form of limonite,compare brown laterite nickel ore type,calcined ore,undressed ore and iron oxide jatropha oil steam reforming catalysts in the catalytic activity.Und er the same reaction conditions,brown laterite nickel ore type,calcined ore,undressed ore,iron oxide and void under the condition of the reaction of hydrogen production ra te were 38.41%,51.78%,58.98%,51.78%,17.44%,SEM,TEM/EDS of catalyst,resp ectively,H₂TPR,such as testing,roasting laterite nickel ore was observed the catalytic activity of dispersion higher,more not easy deactivation,contrast in ferric oxide,for a long period of time under the same quality airspeed catalytic experimental effect is be tter,5 h reaction period,brown iron laterite nickel ore and iron oxide production rate o f hydrogen as the reaction time delay is due to the accumulated hydrocarbon gas produ ction rate decline gradually,brown with iron laterite nickel catalyst deactivation of so me more slowly,and after roasting and reduction of laterite nickel ore first catalytic ac tivity gradually rise,due to carbon deposition problems after 3 h activity gradually dec line.The experiment shows that the laterite nickel ore has better catalytic activity and has a good catalytic effect in the catalytic hydrogen production of jatropha oil.