Abstract:
A process for enhancing the operability of hot gas cleanup for the production of synthesis gas in which a stream of methane rich gas is autothermally reformed at a temperature and pressure sufficient to generate a stream of synthesis gas rich in hydrogen and carbon monoxide, the synthesis gas is subjected to condensation and removing the resultant water, and sulfur impurities are removed from the resultant synthesis gas stream.
Abstract:
A process for enhancing the operability of hot gas cleanup for the production of synthesis gas in which a stream of methane rich gas is autothermally reformed at a temperature and pressure sufficient to generate a stream of synthesis gas rich in hydrogen and carbon monoxide, the synthesis gas is subjected to condensation and removing the resultant water, and sulfur impurities are removed from the resultant synthesis gas stream.
Abstract:
Systems and methods for processing a methane rich producer gas are provided in which the producer gas is preferably produced via steam-hydrogasification. The product stream from the steam-hydrogasification is then subjected to autothermal reforming, steam is removed after the reforming step via condensation, and sulfur impurities are subsequently eliminated. In most preferred aspects, the process pressure is substantially maintained throughout all steps, typically in a range of 150 psi to 500 psi.
Abstract:
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 H2/CO syngas ratio obtained from a steam methane reformer (SMR) by adjusting the hydrogen feed and the water content of feedstock into a steam hydro-gasification reactor that supplies the SMR.
Abstract:
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.
Abstract:
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.
Abstract:
An apparatus and method for utilizing any arbitrary mixture ratio of multiple fuel gases having differing combustion characteristics, such as natural gas and hydrogen gas, within an internal combustion engine. The gaseous fuel composition ratio is first sensed, such as by thermal conductivity, infrared signature, sound propagation speed, or equivalent mixture differentiation mechanisms and combinations thereof which are utilized as input(s) to a “multiple map” engine control module which modulates selected operating parameters of the engine, such as fuel injection and ignition timing, in response to the proportions of fuel gases available so that the engine operates correctly and at high efficiency irrespective of the gas mixture ratio being utilized. As a result, an engine configured according to the teachings of the present invention may be fueled from at least two different fuel sources without admixing constraints.
Abstract:
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.
Abstract:
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.
Abstract:
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 gas cleanup unit 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.