Patent application number | Description | Published |
20080312348 | Method and apparatus for steam hydro-gasification with increased conversion times - A method and apparatus for converting carbonaceous material to a stream of carbon rich gas, comprising heating a slurry feed containing the carbonaceous material in a hydrogasification process using hydrogen and steam, at a temperature and pressure sufficient to generate a methane and carbon monoxide rich stream in which the conversion time in the process is between 5 and 45 seconds. In particular embodiments, the slurry feed containing the carbonaceous material is fed, along with hydrogen, to a kiln type reactor before being fed to the fluidized bed reactor. Apparatus is provided comprising a kiln type reactor, a slurry pump connected to an input of the kiln type reactor, means for connecting a source of hydrogen to an input of the kiln type reactor; a fluidized bed reactor connected to receive output of the kiln type reactor for processing at a fluidizing zone, and a source of steam and a source of hydrogen connected to the fluidized bed reactor below the fluidizing zone. Optionally, a grinder can be provided in the kiln type reactor. | 12-18-2008 |
20090221721 | CONTROLLING THE SYNTHESIS GAS COMPOSITION OF A STEAM METHANE REFORMER - An improved, economical alternative method to supply steam and methane to a steam methane reformer (SMR) is accomplished by a combination of procedures, wherein product gas from a steam hydro-gasification reactor (SHR) is used as the feedstock for the SMR by removing impurities from the product stream from the SHR with a combination of autothermal reforming, condensation removal and gas cleanup procedures that operates substantially at process pressures and at a temperature above the boiling point of water at the process pressure, is located between the SHR and SMR. In another embodiment, a method is provided for controlling the H | 09-03-2009 |
20100285576 | Method to produce synthesis gas or liquid fuels from commingled algae and coal feedstock using a steam-hydrogasification reactor and a steam methane reformer with CO2 utilization through an algae farm - This invention involves the conversion of coal-algae or resid-algae commingled slurry feedstock into a high methane content product gas using a steam hydrogasification process. This gas is then reformed into synthesis gas (H | 11-11-2010 |
20110126458 | METHOD TO PRODUCE METHANE RICH FUEL GAS FROM CARBONACEOUS FEEDSTOCKS USING A STEAM HYDROGASIFICATION REACTOR AND A WATER GAS SHIFT REACTOR - A method for producing high levels of methane based on a combination of steam hydrogasification and a shift reactor is provided. Hydrogen produced by the shift reactor can be recycled back into the steam hydrogasifier. | 06-02-2011 |
20110162257 | HIGH CARBON CONCENTRATION BIOMASS AND BIOSOLIDS SLURRY PREPARATION USING A HYDRO-THERMAL PRETREATMENT - Provided is a process where the biomass and bisolids are hydrothermally treated under a reductive gas. Using this process a high carbon content pumpable mixture of biomass and biosolid slurry is produced with a viscosity value of less than 1.5. | 07-07-2011 |
20120222353 | Method to Produce Methane Rich Fuel Gas from Carbonaceous Feedstocks Using a Steam Hydrogasification Reactor and a Water Gas Shift Reactor - A method for producing high levels of methane based on a combination of steam hydrogasification and a shift reactor is provided using carbonaceous material. Hydrogen produced by the shift reactor can be recycled back into the steam hydrogasifier. | 09-06-2012 |
Patent application number | Description | Published |
20090094892 | Commingled coal and biomass slurries - An energy efficient process for converting biomass into a higher carbon content, high energy density slurry. Water and biomass are mixed at a temperature and under a pressure that are much lower than in prior processes, but under a non-oxidative gas, which enables a stable slurry to be obtained containing up to 60% solids by weight, 20-40% carbon by weight, in the slurry. The temperature is nominally about 200° C. under non-oxidative gas pressure of about 150 psi, conditions that are substantially less stringent than those required by the prior art. In another embodiment, the biomass water slurry can be mixed with a coal water slurry to further optimize the carbon content and pumpability of the biomass slurry. | 04-16-2009 |
20120210631 | Commingled Coal and Biomass Slurries - An energy efficient process for converting biomass into a higher carbon content, high energy density slurry. Water and biomass are mixed at a temperature and under a pressure that are much lower than in prior processes, but under a non-oxidative gas, which enables a stable slurry to be obtained containing up to 60% solids by weight, 20-40% carbon by weight, in the slurry. The temperature is nominally about 200° C. under non-oxidative gas pressure of about 150 psi, conditions that are substantially less stringent than those required by the prior art. In another embodiment, the biomass water slurry can be mixed with a coal water slurry to further optimize the carbon content and pumpability of the biomass shiny. | 08-23-2012 |