GB/T 18916.35-2018Norm of water intake—Part 35: Methyl alcohol produced by coal (English PDF)

Foreword

The following parts of GB/T 18916 Norm of Water Intake have been issued or are planned to be issued.

---Part 1. Fossil Fired Power Production;

---Part 2. Iron and Steel Complex;

---Part 3. Petroleum Refining;

---Part 4. Dyeing and Finishing of Cotton Production;

---Part 5. Pulp, Paper and Paper Board Production;

---Part 6. Brewing Industry;

---Part 7. Alcohol Production;

---Part 8. Ammonia Synthesis;

---Part 9. Monosodium L-glutamate Production;

---Part 10. Pharmaceutical Products;

---Part 11. Coal Cleaning;

---Part 12. Alumina Production;

---Part 13. Ethylene Production;

---Part 14. Wool Textile Product;

---Part 15. Chinese Spirits Production;

---Part 16. Electrolytic Aluminum Production;

---Part 17. Manufacture of Accumulating Type of Bauxite;

---Part 18. Copper Smelting Production;

---Part 19. Lead Smelting Production;

---Part 20. Chemical Filament Yarns Weaving Products;

---Part 21. Silk Production;

---Part 22. Starch Sugar Production;

---Part 23. Citrate Acid Production;

---Part 24. Long Vegetable Fiber Production;

---Part 25. Chinese Spirits Production;

---Part 26. Soda Ash;

---Part 27. Urea;

---Part 28. Sulphuric Acid for Industrial Use;

---Part 29. Caustic Soda;

---Part 30. Coking;

---Part 31. Sintering and Pelletizing for Iron and Steel Industry;

---Part 32. Iron Ore Mineral Processing;

---Part 33. Indirect Coal Liquefaction;

---Part 34. Direct Coal Liquefaction;

---Part 35. Methyl Alcohol Produced by Coal;

---Part 36. Ethylene Glycol Produced with Coal as Raw Material;

---Part 37. Phosphoric Acid by Wet Process;

---Part 38. Polyvinyl Chloride;

---Part 39. Natural Gas Produced by Coal.

This is Part 35 of GB/T 18916.

This Part is drafted in accordance with stipulations in GB/T 1.1-2009.

1 Scope

This Part of GB/T 18916 specifies the terms and definitions, calculation methods and norm of water intake of methyl alcohol produced by coal.

This Part is applicable to the management of water intake of the existing, newly constructed, reorganized and expanded enterprises in the production of methyl alcohol produced by coal (including synthetic ammonia combined methanol whose capacity exceeds 10% of total ammonia).

2 Normative References

The following documents are indispensable to the application of this Standard. In terms of references with a specified date, only versions with a specified date are applicable to this Standard. The latest version (including all the modifications) of references without a specified date is also applicable to this Standard.

GB/T 12452 The General Principles of Water Balance Test in Enterprises

GB/T 18820 General Principles of Stipulation of Water Intake Norm for Industrial Product

GB/T 21534 Industrial Water Usage and Conservation - Terminology

GB 24789 General Provisions on Equipping and Managing of the Measuring Instrument of Water in Organization of Water Using

3 Terms and Definitions

What is defined in GB/T 18820 and GB/T 21534, and the following terms and definitions are applicable to this document.

4 Calculation Methods

5 Norm of Water Intake

6 Instructions for Norm Usage

6.1 In the management of the norm of water intake, enterprises' water balance test shall comply with the requirement in GB/T 12452.

6.2 The configuration and management of water measuring instrument for enterprises in methyl alcohol produced by coal shall comply with the requirement in GB 24789.

6.3 Please refer to Appendix A for the method of calculating the quantity of water intake for methyl alcohol produced by coal.

Appendix A (Informative) Calculation of Quantity of Water Intake for Methyl Alcohol Produced by Coal

In the calculation of the quantity of water intake of methyl alcohol products, how to obtain the total quantity of water intake within a certain period of production becomes the key to accurate calculation of water intake quantity of methyl alcohol products. In accordance with the nature of methyl alcohol product production, the total quantity of water intake shall be calculated in accordance with this formula. Where.

Vi---total quantity of water intake;

Vg---water consumption of coal gasification. it refers to water or steam that is consumed in the stage of methyl alcohol production, which needs coal gasification to generate effective gas (CO + H2) and obtains methanol synthesis gas through transformation, refinement and hydrogen distribution. It includes steam, that is involved in chemical reaction. Mostly, it is steam brought out by effective gas, and cooling washing water that is generated through the rinsing of effective gas.

Vm---water consumption of methyl alcohol device. it refers to water consumption in the conversion of circulating water hydration, softened water, demineralized water, steam and condensate water that are needed in methanol synthesis and the operation of methanol refining device;

Va---water apportionment of ancillary facilities. it refers to water consumption that is apportioned to methyl alcohol device at a certain proportion by ancillary facilities (including office, afforestation, plant canteen, bathroom and toilet, etc.). […]