Project's information

Project's title Investigation on preparation of catalysts for conversion of CO and CO2 into liquid fuel
Research hosting institution Institute of Chemical Technology
Project leader’s name Prof. Luu cam Loc, Dr.Sc
Project duration 01/01/2009 - 01/01/2010
Project’s budget 400.000.000 VND
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Goal and objectives of the project
  • Preparation of high effective catalysts for conversion of CO and CO2 into liquid fuel;
  • Selection of reactor, determine the optimal reaction conditions and estimation of economic values of process of production of liquid fuel from carbon oxides.
Main results

Theoretical results:

- Today, with oil prices above 100 $/barrel, process of conversion of syngas to liquid fuels is particularly interested. On the basis of research results on the catalysts composition, physico-chemical properties and the activity of catalyst, the nature of catalytic center has been determined. The results obtained in this study permits to assume that the precursors of active centers in the conversion of CO to C5+ hydrocarbons on cobalt-based catalysts are highly dispersed and easily reducible species Co3O4 supported on the carriers with weak acidity.

- When combining the treatment of Al2O3 carries, using new materials mesopore SBA-15, using different cobalt precursors with using additives such as Pt, Ru, Pd, La2O3 and MnO2  it would be possible to obtain the highly effective catalysts giving a high yield in liquid hydrocarbons C5+ (51-53%) at relatively low values of temperature and pressure (2000C; 0.7 MPa). The success of this project is already reducing the levels of precious metals additives (Pt, Pd, Ru) down to 0.05 to 0.1wt% and successfully prepared catalysts modified with cheap metal oxides such as La2O3 or MnO2 having a high yield in liquid hydrocarbons and relatively low cost.

Applied results: The Fischer–Tropsch (FT) process converts a mixture of CO and H2 (syngas) to a range of hydrocarbons. The  most  popular  goal  is  to  utilize of mixture of carbon oxides (CO, CO2) and hydrogen to produce 'clean'  (low  sulphur, low  aromatics) middle distillates/fuels. It can hence be considered as an alternative to crude oil for the production of both liquid fuels (gasoline and diesel) and chemicals (in particular, 1-alkenes). The results obtained in this project allowed us to propose the method of catalysts preparation from cheap precusors and determine the optimal reaction condition. The liquid hydrocarbons products can be further processed into clean gasoline.  Economic analysis shows that with current oil prices, the FTS process has a high economic efficiency.

Novelty and actuality and scientific meaningfulness of the results
  1. In this research, the new high active catalyst systems 15Co(N)01PdAlN-10; 20Co(Ac)005PtAl-N10, 20Co(Ac)2MnAl-N10, and 20Co(Ac)2LaAl-N10 were prepared by a impregnating method, exhibited the excellent activity for conversion of  CO into liquid hydrocarbons with 51-53% of C5+ yield.
  2. To meet the requirements of the catalytic properties, in this study the different approaches were used simultaneously. To adjust the acidity of catalysts the treatment of Al2O3 by NH3, NH4NO3 solution was performed. The increase of catalyst reduction was achieved by using noble metal or metal oxide additives. The use of new, widened pore mesopore materials SBA-15 and different cobalt precursors, allowing increased dispersion of active phase. In the result, activity of catalysts increases remarkably.
  3. With yield of liquid hydrocarbons reached 51-53% in moderate condition, the obtained cobalt-based catalyst can be applied to the FTS process.
  4. Reaction products obtained at 7 at is light gasoline fraction (C5-C14) can be processed into high-octane number gasoline.
  5. Economic analysis shows that with current oil prices, the FTS process from synthesis gas has a high economic efficiency.
Products of the project

- Scientific papers in referred journals (list):

01 article was published in J. Chemistry; and 01 -  in Proc. Conference on 35th Anniversary of VAST
02 Proc. of National and International Conferences
-  07 Master thesis

- Other products (if applicable): catalyst samples and method of catalyst preparation.

Images of project
1603680414556-luu cam loc_anh 1.jpg