Advanced and integrated biomass gasification with hot and catalytic flue gas cleaning for electricity production and other end products

Objective

ADVANCED GASIFICATION OF BIOMASS WITH CATALYTIC/HOT GOOD
FLUE GAS CLEANING HAS A VERY PROMISING FUTURE.
UP TO A 99.99% TAR AND METHANE DESTRUCTION HAS ALREADY BEEN REACHED IN THE FLUE GAS WITH COMMERCIAL CATALYSTS OF STEAM REFORMING (NI BASED) AND OF HYDROCRACKING (CO-MO).
WITH SUCH CATALYSTS PLACED DOWNSTREAM THE GASIFIER A CLEAN AND H2-RICH (70% H2) GAS, USEFUL FOR MANY PURPOSES, HAS ALREADY BEEN OBTAINED. SEVERAL EXIT GAS COMPOSITIONS WILL BE OBTAINED OR TAILORED FOR SEVERAL END USES.
LONG TERM RUNS AND A FEASIBLE AND ECONOMICAL PROCESSING WILL BE BASIS OF THIS WORK.

PARTICIPANT #l (UCM) WILL STUDY HOW TO INCREASE THE CATALYST LIFE TO ALLOW LONG TERM OPERATION.
COKE FORMATION ON THE CATALYST SURFACE WILL BE DIMINISHED.
LESS TAR YIELD WILL BE PRODUCED IN THE GASIFIER AND A NEW 3-STAGE PROCESS WILL BE USED.
THIS 3-STAGE PROCESS IS BASED IN A GASIFIER, A GUARD BED (OF DOLOMITE OR LIGNITE COKE OR CHAR) FOR TAR ELIMINATION AND A CATALYTIC BED WITH COMMERCIAL STEAM REFORMING (NI) CATALYSTS.
THIS PROCESS WILL BE OPTIMIZED TO MADE ECONOMICAL ITS USE AT COMMERCIAL SCALE.

UCM WILL RUN THREE EXPERIMENTAL FACILITES: lST) A TWO STAGE BENCH SCALE STEAM GASIFIER (0.5 KG/H).
2ND) THE 3-STAGE FACILITY.
HIGH TAR ELIMINATION AND LONG LIVES FOR THE CATALYSTS WILL BE MAIN OBJECTIVES.
3ND) A SMALL PILOT PLANT (520 KG/H) CIRCULATING FLUID BED GASIFIER. AN ABUNDANT AND PROBLEMATIC RESIDUE AS CEREAL STRAW WILL BE THERE GASIFER WITH AIR/STEAM MIXTURES.

PARTICIPANT #2 (DTI) WILL DEVELOP, IMPROVE AND TEST NEW CATALYSTS FOR CONVERSION OF TAR FROM GASIFIERS INTO GASEOUS LIGHT HYDROCARBONS. THE CATALYSTS ARE BASED ON HYDROCRACKING CATALYSTS OPERATING AT ATMOSPHERC PRESSURE AND IN THE TEMPERATURE RANGE OF 350 - 600 °C.
THE CATALYSTS ARE FIRST TESTED IN THE LABORATORY WITH RESPECT TO DEGREE OF CONVERSION SELECTIVITY AND STABILITY.
TESTS RUNS OF GASIFICATION WITH DOWNSTREAM CONVERSION USING SELECTED CATALYSTS WILL BE AFTERWARDS MADE IN BENCH AND PILOT PLANT SCALES (10 - 100 NM3/H).

EFFORT WILL BE MADE TOWARDS DEVELOPING ADVANCED, FEASIBLE AND ECONOMICAL CATALYTIC GASIFICATION PROCESSES OF BIOMASS, MAINLY STRAW.
THE SHARE OF TIME BETWEEN THE 2-ACTIVITIES INVOLVED IN THE PROJECT IS: ADVANCED CATALYTIC GASIFICATION=70%, GASIFIING STRAW=30%.

Fields of science

Programme(s)

FP3-JOULE 2 - Specific research and technological development programme (EEC) in the field of non-nuclear energy, 1990-1994

Topic(s)

0303 - Biomass

Call for proposal

Data not available

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

UNIVERSIDAD COMPLUTENSE DE MADRID

Address

S/n,avenida De La Complutense S/n Ciudad Universitaria
28040 Madrid
Spain

Participants (1)

DANISH TECHNOLOGICAL INSTITUTE

Denmark