Return to DOE Reports Table of Contents - S U.S. Coal Test Program on BGC-Lurgi Slagging Gasifier. Final Report August 1981. British Gas Corporation Scott, J. E. Table of Contents 1 Introduction and Summary 1-1 EPRI Run – 01 1-2 EPRI Run -02 1-2 EPRI Run -03 1-3 2 Steady State heat and mass balances 2-1 3 Process Dynamics at Steady state 3-1 4 Demonstrated rapid load changes 4-1 5 Process dynamics accompanying load changes 5-1 General Behavior during Transients 5-1 The Response to Pulse Changes 5-2 6 Mechanical Performance 6-1 7 Performance of Lurgi Proprietary Equipment 7-1 Objectives 7-1 General Arrangement of coal distributor, stirrer and tar recirculation systems 7-2 Recirculation system 7-2 Analysis of Experimental results 7-2 Stirrer speed optimization for Rossington and Pittsburgh B Coal 7-2 Stirrer Spood Setting at increased pines content of feed coal 7-4 Evaluation of the Tar Recirculation 7-6 Objectives and Analysis of the percent system 7-6 Impact of tar recirculation on the reactor performance under various operating conditions 7-6 General remarks to the operation at load changes 7-7 Evaluation of Bed Upsets 7-8 Conclusions 7-8 8 Particulates in Raw Gas 8-1 Description of Dust probe and filter system 8-1 Design considerations and comments 8-2 Method of operation of dust probe 8-2 Problems encountered and how they were overcome 8-2 Results of dust concentration measurements 8-3 Results of dust analysis 8-7 Physical Description of dust particulate 8-13 Discussion and Conclusions 8-13 9 Load change tests on oxygen plants 9-1 Background 9-1 Test Procedure 9-1 Results 9-2 Comments 9-5 Discussion 9-5 Summary 9-5 10 Report on test run EPRI – 01 10-1 Summary 10-1 Equipment, Instruments and Controls 10-2 Run Diary 10-5 Slag Tapping and Slag Removal 10-11 Fluxing Systems 10-11 Bed Behavior 10-11 Dust in Flare Gas 10-15 Plant Behavior in Flow Control 10-15 Steam/Oxygen Ratio at 50,000 SCP/H Oxygen Loading 10-27 Behavior of Gasifier during transients 10-28 Post Run Inspection 10-29 Conclusions 10-29 11 Report on test run EPRI – 02 11-1 Summary 11-1 Equipment, Instruments and Controls 11-2 Run Diary 11-2 Slag Tapping and Slag Removal 11-7 Fluxing Systems 11-13 Bed Behavior 11-13 Plant Behavior in flow control 11-15 Behavior of gasifier during transients 11-34 Post Run Inspection 11-43 Conclusions 11-43 12 Report on the Test Run EPRI -03 12-1 Summary 12-1 Equipment, instruments and Controls 12-2 Slag tapping and slag removal 12-7 Fluxing System 12-7 Bed Behavior 12-7 Plant Behavior in Flow Control 12-17 Behavior of the Gasifier during transients 12-23 Tar Injection to the Tuyeres 12-23 Post run Inspection 12-37 Conclusions 12-37 A Plant Control Systems A-1 B Instrument List B-1 C Particulate Sampling – Details C-1 D Analytical Schedule D-1 E Heat and Mass Balances E-1 |