tailieunhanh - Novel Design of an Integrated Pulp Mill Biorefinery for the Production of Biofuels for Transportation

An integrated gasification process was developed for an Ohio-based kraft pulp mill to produce liquid transportation fuels from biomass and coal. Black liquor byproduct from the pulp mill is co-gasified with coal to generate high quality syngas for further synthesis to dimethyl ether (DME) and/or Fischer-Tropsch fuels. A Texaco gasifier was chosen as the focal point for this design. Whenever possible, energy is recovered throughout to generate heat, steam, and power. Mass and energy balances were performed for individual process components and the entire design. An overall process efficiency of 49% and 53% was achieved for DME and FT-fuels, respectively | Novel Design of an Integrated Pulp Mill Biorefinery for the Production of Biofuels for Transportation EGEE 580 May 4 2007 By Jamie Clark Qixiu Li Greg Lilik Nicole Reed Chunmei Wang Abstract An integrated gasification process was developed for an Ohio-based kraft pulp mill to produce liquid transportation fuels from biomass and coal. Black liquor byproduct from the pulp mill is co-gasified with coal to generate high quality syngas for further synthesis to dimethyl ether DME and or Fischer-Tropsch fuels. A Texaco gasifier was chosen as the focal point for this design. Whenever possible energy is recovered throughout to generate heat steam and power. Mass and energy balances were performed for individual process components and the entire design. An overall process efficiency of 49 and 53 was achieved for DME and FT-fuels respectively. 2 Table of Contents List of List of 1 2 Pulp Mill Harvesting and Pulping . 10 Chemical Extending the Delignification Causticizing and Lime Air Separation Pulp Black Liquor Gasification to Low-Temperature Black Liquor High-Temperature Black Liquor Black Liquor Gasifier Coal Gasification Background of DME Properties of Features of DME Synthesis . DME separation and DME Utilization. .29 Fischer-Tropsch . Fischer-Tropsch . Fischer-Tropsch . Fischer-Tropsch . Fischer-Tropsch Product . Fischer-Tropsch Product Heat and Power 3 Process Pulp Reference Group Design Black Liquor and Coal Gasification to .