Coal-to-synthetic natural gas technology and application

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This post was last edited by goldliyang at 2021-1-20 11:18 Coal-to-synthetic natural gas technology and application extraction code: 6EQX This book relies on the construction and operation experience of coal-to-synthetic natural gas demonstration projects in my country. From the perspective of plant operation and management, this book discusses the characteristics of the coal-to-natural gas industry, factory production characteristics, product characteristics, user characteristics and production scheduling characteristics. On this basis, it systematically introduces the production technology of coal-to-synthetic natural gas plants such as raw material security, power supply, air separation, coal gasification, synthesis gas conversion and purification, syngas methanation, natural gas drying, wastewater treatment and other aspects. Among them, coal gasification technology is the focus of this book. The development history, process flow, gasifier composition, gasification parameters, crude syngas composition, technical characteristics and applications of different coal gasification technologies such as fixed bed gasification, circulating fluidized bed gasification, dry powder entrained bed gasification, and coal water slurry gasification are described in detail. This book also provides first-hand information on the construction and production operations of coal-to-synthetic natural gas demonstration projects. Chapter 1 Introduction Section 1 Basic concepts 001 1. Direct coal-to-synthetic natural gas technology 001 2. Indirect coal-to-synthetic natural gas technology 002 Section 2 Development background and development history 003 1. Background of the development of foreign coal-to-synthetic natural gas industry 003 2. Background of the development of my country's coal-to-synthetic natural gas industry 003 3. Development history of my country's coal-to-synthetic natural gas industry 005 4. Overview of some coal-to-synthetic natural gas projects 006 Section 3 Characteristics of coal-to-synthetic natural gas industry 008 1. Technical characteristics of coal-to-synthetic natural gas plants 008 2. Characteristics of raw coal resources 009 3. Characteristics of coal-to-synthetic natural gas plant production equipment 010 4. Characteristics of coal-to-synthetic natural gas products 010 5. Characteristics of natural gas supply and consumption in my country 011 6. Classification of coal-to-synthetic natural gas plants 011 7. Main contradictions in the coal-to-synthetic natural gas supply chain for urban users 012 8. Peak shaving issues in coal-to-synthetic natural gas plants 012 Section 4 Development prospects of my country's coal-to-synthetic natural gas industry 013 Section 5 Coal-to-synthetic natural gas product quality characteristics and application analysis 017 Section 6 Coal-to-synthetic natural gas plant production scheduling 023 1. Coal-to-synthetic natural gas plant production scheduling characteristics 023 2. Production scheduling principles 023 References 026 Chapter 2 Raw coal supply guarantee Section 1 Overview of coal resources 027 1. Characteristics of my country's coal resources 027 2. Characteristics of lignite resources in my country 028 Section 2 Physical and chemical properties of coal 030 1. Physical and physicochemical properties of coal 030 (1) Density of coal 030 (2) Mechanical properties of coal 030 (3) Thermal properties of coal 031 (4) Electrical and magnetic properties of coal 032 (5) Optical properties of coal 032 (6) Wettability of coal 033 (7) Specific surface area and porosity of coal 033 2. Chemical properties of coal 033 (1) Oxidation of coal 033 (2) Pyrolysis of coal 034 (3) Hydrogenation of coal 035 (4) Chlorination of coal 035 (5) Sulfonation of coal 035 Section 3 The impact of raw coal characteristics on gasification behavior 036 Section 4 Scope of raw coal guarantee work 039 1. Formulation of raw coal production, supply and marketing plan 039 2. Raw coal mining and production monitoring 040 3. Raw coal blending and storage 040 4. Raw coal transportation and acceptance 040 5. Social and economic benefits of raw coal guarantee 040 Section 5 Raw coal mining and production monitoring 041 1. Total moisture determination 041 2. Industrial analysis 042 3. Total sulfur determination 043 4. Calorific value determination 044 5. Ash fusibility determination 045 6. Element analysis 045 7. Ash composition analysis 046 Section 6 Mixing and storage of raw coal 047 1. Mixing of raw coal 047 2. Storage of raw coal 051 Section 7 Transportation and acceptance of raw coal 051 1. Transportation of coal 051 2. Acceptance of coal 053 (1) Acceptance of raw coal quantity 053 (2) Acceptance of raw coal quality 054 Section 8 Technical and economic evaluation of raw coal supply for typical projects 056 1. Feasibility and Economic Analysis of Blending Coal 057 2. Economic Analysis of Improving Lignite Blocking Rate 057 3. Economic Analysis of Trial Burning of Bituminous Coal 058 References 060 Chapter 3 Thermoelectric Power System Section 1 The Status of Thermoelectric Power System in Modern Coal Chemical Enterprises 061 Section 2 Basic Situation and Engineering Technology Characteristics of Coal-to-Synthetic Natural Gas Plant 061 1. Basic Situation and Engineering Technology Characteristics of Coal-to-Synthetic Natural Gas Plant 061 2. Engineering Technology Characteristics 062 Section 3 The configuration of the thermal power station of the coal-to-synthetic natural gas plant and its relationship with the chemical equipment 062 1. The configuration of the thermal power station 062 2. The relationship between the thermal power station and the chemical equipment 062 Section 4 The configuration plan of the thermoelectric power system of the coal-to-synthetic natural gas plant 063 Section 5 The thermal configuration method and review of the coal chemical enterprise 065 1. The model of "determining electricity with steam (heat)" 065 2. The model of “self-supplied steam + purchased electricity” 066 3. The model of integrated high-efficiency large units of heat, electricity and chemicals 068 4. The model of supporting the construction of IGCC combined cycle power generation devices 068 Section 6 Energy efficiency analysis of the coal-to-synthetic natural gas plant 070 1. The comprehensive energy efficiency of the Datang Keqi coal-to-synthetic natural gas project 070 2. Factors affecting the comprehensive energy efficiency of the coal-to-synthetic natural gas project 070 3. Energy Efficiency Comparison of Different Thermal Power Schemes of the Coal-to-Synthetic Natural Gas Upgrade Demonstration Project 071 Chapter 4 Air Separation Section 1 Overview 073 Section 2 Air Separation Technology 074 1. Air Separation Method 074 2. Main Technologies for Separating Air by Cryogenic Method 074 (1) Turbine Expander Refrigeration Technology 074 (2) Cryogenic Distillation Technology 075 Section 3 Application of Air Separation Technology in Coal Chemical Projects 077 1. Air separation equipment supporting fixed bed coal gasification technology 078 2. Air separation equipment supporting fluidized bed coal gasification technology 079 3. Air separation equipment supporting entrained bed coal gasification technology 080 Section 4 Main equipment 083 1. Air compressor 083 (1) Full centrifugal compressor 083 (2) Axial flow + centrifugal compressor 085 2. Direct air cooler 085 3. Molecular sieve purifier 086 4. Expander 087 (1) Booster turbine expander structure 087 (2) Liquid expander 089 5. Plate heat exchanger 089 (1) Main heat exchanger 089 (2) Condensing evaporator 090 6. Cryogenic rectification tower 091 (1) Sieve plate tower 091 (2) Packing tower 091 7. Cryogenic liquid pump 092 (1) Reciprocating cryogenic liquid pump 093 (2) Centrifugal cryogenic liquid pump 093 8. Cryogenic liquid storage tank 094 (1) High vacuum insulated storage tank 094 (2) Vacuum powder insulated storage tank 095 (3) Ordinary powder insulated storage tank 095 Section 5 control system 095 1. Compressor unit control 096 (1) Compressor unit anti-surge control 096 (2) Speed modular control 097 2. Air cooler antifreeze control system 098 3. Purification system control 098 4. Automatic control system of cryogenic liquid pump 100 5. Automatic variable load control 100 Section 6. Operation points and accident case analysis 102 1. Operation points of air separation unit 102 (1) Main operations of the unit 102 (2) Main operations of the unit 103 2. Accident case analysis 105 (1) Deoxygenation operation of air separation unit 105 (2) Unit jump accident caused by low control oil pressure 105 (3) Water intrusion accident of molecular sieve purifier 106 (4) Burst accident of air and dirty nitrogen pipelines 107 (5) Main cooling explosion accident 107 References 108 Chapter 5 Overview of Coal Gasification Section 109 1. Basic Concept 109 2. Classification of Coal Gasification Technology 110 3. Selection of Coal Gasification Technology 112 Section 2 Fixed bed gasification technology 113 1. Crushed coal pressurized solid slag discharge gasification technology 113 (1) Technical characteristics 113 (2) Lurgi coal gasification technology 114 (3) Crushed coal pressurized solid slag discharge gasification 122 2. Crushed coal pressurized liquid slag discharge gasification technology 129