Development of an advanced, continuous mild gasification process for the production of co-products technical evaluation. Final report

Ness, Jr; Runge, B; Sharp, L

doi:10.2172/10148516

Cited by 2 publications

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“…Results from Task 2 were submitted as a summary report by the EERC in December 1989. 59 Results from Task 3 by AMAX were' presented in quarterly technical progress reports submitted by the EERC to METC during the July 1989 to December 1991 time period. 11°L ikewise, the Task 4 results of the 100-pound/hour mild gasification PRU operation were presented in the same quarterly technical progress reports.…”

Section: Project Organizationmentioning

confidence: 99%

Development of an advanced, continuous mild gasification process for the production of co-products

Wolfe¹,

Wright²,

Im³

et al. 1992

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The principal finding of this study was the high capital cost and poor financial performance predicted for the size and configuration of the plant design presented. The XBi financial assessment gave a disappointingly low base-case discounted cash flow rate of return (DCFRR) of only 8.1% based on a unit capital cost of $900 per ton year (tpy) for their 129,000 tpy design. This plant cost is in reasonable agreement with the preliminary estimates developed by J.E. Sinor Associates for a 117,000 tpy plant based on the FMC process with similar auxiliaries (Sinor, 1989), for which a unit capital costs of $938 tpy was predicted for a design that included char beneficiation and coal liquids upgrading-or about $779 tpy without the l:,quid upgrading facilities. The XBi assessment points out that a unit plant cost of $900 tpy is about three times the cost for a conventional coke oven, and therefore, outside the competitive range for commercialization. Modifications to improve process economics could involve increasing plant size, expanding the product slate that XBi has restricted to form coke and electricity, and simplifying the plant flow sheet by eliminating marginally effective cleaning steps and changing other key design parameters. Additional comments and corrections have been marked on the attached copyof the subject report.

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Section: Project Organizationmentioning

confidence: 99%

Development of an advanced, continuous mild gasification process for the production of co-products

Wolfe¹,

Wright²,

Im³

et al. 1992

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“…For example, Rammler (1981) reports a fines content of the composite product oil as high as 7 wt% from a screw-type gasifier operating on a sub-bituminous coal. For comparison, Ness (1989) reports a fines content of the product oil from a fluidized-bed pilot plant of the order 15 wt%. Particle size distributions of the oil product fines are also given by Ness (1989); the average particle size is reported to be of the order 10-20 Ian implying that the two primary cyclones used in the experiments have not performed optimally.…”

Section: Introductionmentioning

confidence: 99%

Separation of products from mild coal gasification processes

Wallman¹

1991

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This is an informal report intended primarily for internal or limited external • distribution. The opinions and conclusions stated are those of the author and may or may not be those of the Laboratory. Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under Contract W-7405-Eng-48. #ISrI:III_LEION OF THIS DOC.;d_',AENT _" _. _.4i..., . ;t,41TEO DISCLAIMER This document was prepared as an acccount of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefuh_es's of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately own rights. Reference herein to any specific commercial products, pn_'ess, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do _ot necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. IThis report has been reproduced directly from the best available cop),.

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Development of an advanced, continuous mild gasification process for the production of co-products technical evaluation. Final report

Cited by 2 publications

References 0 publications

Development of an advanced, continuous mild gasification process for the production of co-products

Development of an advanced, continuous mild gasification process for the production of co-products

Separation of products from mild coal gasification processes

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